Photographic and CCD Accessories

We provide several links to exploded diagrams in the product descriptions below. These files are in PDF format and requires Acrobat Reader v3.0 or above.
Download the FREE Acrobat Reader to view these files.
Hint for two-page diagrams: After Acrobat has opened, click on the page icon at the bottom of the screen and choose "continuous-facing" to view the pages of the PDF side by side. Reduce the percentage to fit pages both on your screen.


2" Convertible Photo-Visual Barlow (BARCON)
Use this two-part accessory in several configurations to increase the focal length of the objective for high-power visual observation and lunar-planetary photography. We do not recommend the Barlow for deep-sky photos when using a scope that has a fast focal ratio. These photos will exhibit significant field curvature, which will limit the usable portion of the negative.
The 2-element design uses special glasses to preserve the fine color correction of the main objective. The optical elements are hand-corrected and precision centered to insure that no aberrations are introduced into the system. The Barlow focal length is 127 mm which is longer than conventional types. This minimizes the divergence of the edge rays and therefore reduces the apparent vignetting common in many eyepieces (Plossls and Panoptics). The Barlow features a brass locking ring as described for the 2.7" focuser. Note the following positions and resulting magnifications:

1.7x after the diagonal
2x before the diagonal or camera adapter
2.4x before the Baader Planetarium Binocular Viewer (threaded directly into the prism diagonal)
3.2x before the Baader Planetarium Binocular Viewer used with the extension
BARCON$210.00 in stockAdd BARCON To My Cart
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Photographic-Visual Telecompressor (0.75x) (27TVPH)
We have increased the versatility of our telecompressor (also called a focal reducer) by designing a variety of accessories for photographic, CCD and visual applications. The effective focal length will be approximately 0.75 times the focal length of the instrument, i.e. our f6 refractors will operate at a very fast f4.5! Deep-sky objects are recorded on film in a fraction of the time needed at prime focus. In addition, you can more effectively capture a large object or cluster of objects with the telecompressor. For instance, if you photograph at prime focus with a 35mm camera on a 130mm f6 StarFire, you will achieve a 1.7 x 2.4 degree field. If you use the telecompressor, the field size increases to 2.3 x 3.3 degrees at 4.5. This greatly increases the versatility of your refractor for imaging a wide variety of objects.
This well-corrected accessory lens preserves the high contrast and superb color correction of the main objective. While the telecompressor flattens the field to a certain degree, you may still notice some slightly elongated stars in the corners. This is less of an issue with CCD imaging when the chip size is smaller than a 35mm negative. For the very best edge star images, we recommend the prime focus 2.7" or 4" field flatteners, which have been specifically designed for each focal length of our StarFire refractors.

Here are a few examples of images from our gallery that were taken with our telecompressor:

M42, 105mm Traveler at f4.5 taken by Ray Gralak with an SBIG ST8E.
Gamma Cygnus Region, 105mm Traveler at f4.5 taken by Ray Gralak with an SBIG ST8E.
M8, 130mm StarFire EDFS at f4.5 imaged by Loke Tan with an SBIG ST10E.
IC 5070 - The Pelican Nebula, 155mm StarFire EDFS at f/5.2 taken by Ray Gralak with SBIG ST-10XE

We designed the telecompressor so that it threads directly into the drawtube, thus placing the optics forward in the optical system. As a result, the telecompressor can only be used with Astro-Physics 2.7" and 4" focusers and Starlight Instruments focusers that have an adapter for Astro-Physics 2.7" accessories. In addition to our refractors, Astro-Physics focusers are featured in several popular Ritchey-Chretiens (the telecompressor produces very fine results with these scopes) and are available for telescope makers (27FOC3E and 27FOC3E-FT).

The focal length of the Photo-Visual Telecompressor is 27.6" (700 mm). In order to obtain approximately .75x, please refer to the exploded diagram for various configurations. Although not shown on the diagram, the telecompressor is threaded for 58mm filters.

Applications:

35mm Camera - Our Prime Focus Camera Adapter PFCT--- and your favorite 35mm camera will produce very fine images in no time at all. It is best to use the Astro-Physics Camera Adapter since the length is appropriate to achieve 0.75x for optimal results.

CCD Camera - Choose the appropriate adapter (A3503, or A3502) to space the telecompressor properly with your CCD camera for 0.75x compression.

Pentax 6x7 Camera - For a 2" fully illuminated circle on 6x7 film (results in approximately 55% more field than 35mm film!), a special camera adapter (ADA67P) interfaces with the Pentax 6x7 medium-format camera.

Visual - Slip in a 2" diagonal, such as our MaxBright Diagonal (PMDMAX), with most eyepieces (some eyepieces may not focus). While it is fun to use the telecompressor in this manner, your best wide field results will be obtained with a high-quality eyepiece rather than a telecompressor/eyepiece combination.

Diagram:
Astro-Physics Photo-Visual Telecompressor - We suggest that you review this exploded diagram, in PDF format, showing the telecompressor with a variety of accessories. Read hint for viewing this two-page diagram.

27TVPH$250.00 in stockAdd 27TVPH To My Cart
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Camera Adapter with T-Ring for 35mm Camera (PFCT- - -)
(PFCT - - -, last 3 letters indicate t-ring)
Our camera adapter allows you to attach your 35mm camera to any focuser that accepts 2" slip-in accessories. It is machined of aluminum, black-anodized and the inside is painted flat black. The I.D. of the opening where your camera attaches is 1.52" (3.86cm) (some other camera adapters have a thick wall, which reduces the opening to your camera). The camera adapter is threaded for the popular 48mm filters.
Note the tapered 2" barrel. When used with our brass locking ring (or any locking ring clamp), this unique barrel will seat your valuable camera squarely and solidly into place. Even a single thumbscrew interface will be improved. Purchase the adapter with or without a t-ring. If you order a t-ring, the three dashes in the part number will be replaced by three letters, i.e. PFCTNIK if a Nikon t-ring in included. Please specify the t-ring that you wish to use. Order an extra t-ring if you have two cameras.
PFCT$43.00 in stockAdd PFCT To My Cart
PFCTCAN$55.00 in stockAdd PFCTCAN To My Cart
PFCTEOS$65.00 in stockAdd PFCTEOS To My Cart
PFCTKON$55.00 in stockAdd PFCTKON To My Cart
PFCTMAF$65.00 in stockAdd PFCTMAF To My Cart
PFCTMAX$65.00 in stockAdd PFCTMAX To My Cart
PFCTMIN$55.00 in stockAdd PFCTMIN To My Cart
PFCTNIK$55.00 in stockAdd PFCTNIK To My Cart
PFCTOLY$55.00 in stockAdd PFCTOLY To My Cart
PFCTPTK$55.00 in stockAdd PFCTPTK To My Cart
PFCTPTS$55.00 in stockAdd PFCTPTS To My Cart
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2.7" Prime Focus Field Flattener (67PF56, 67PF582, 67PF69, 67PF79)
Our 2.7" Field Flattener can be coupled to a variety of different cameras for truly superb photographs or images with your StarFire refractor. Each field flattener is designed for a particular focal length for optimal results. They are not interchangeable. For those wishing to adapt the field flattener to other cameras, keep in mind that the film plane should be 3.4" from the surface of the flange closest to the camera, +-1/10". (86.4mm +/- 2.5mm) This is true for all 2.7" and 4" field flatteners that we have produced except for the 160 Field Flattener (160FF).


Use the locking ring to secure your camera into position after you have framed your image. This allows you to rotate the camera to achieve your desired composition.
Please choose the appropriate field flattener for your Astro-Physics refractor:
67PF462 - 105 Traveler
67PF56 - 130 StarFire EDFS
67PF582 - 140 f7.5 StarFire EDF, 130 StarFire EDT, 155 StarFire EDFS, Star130ED, Star12ED, 5"f8 StarFire, 5"f8 Standard
67PF69 - 155 StarFire EDT, previous 6"f9 and Star155ED
67PF79 - 180 StarFire EDT, 7"f9 StarFire
Applications:
Pentax 6x7 Camera - Produces sharp star images over the entire 6x7 format of a Pentax camera at prime focus. Enlargements of 16"x20" are possible without fuzzy images or loss of detail. The adapter for this camera is already built into the field flattener. Click here to see a photo of the field flattener with our 2.7" focuser and Pentax 6x7.
35mm Camera - use 67RT-- adapters (specify the t-ring that you need) to interface with the field flattener for optimum results in 35mm film formats. Click here to see the field flattener with our 2.7" focuser and 35mm camera.
CCD Camera - Choose the appropriate adapter A1260, A1261 or A1262 to space the field flattener properly with your CCD camera.  

Diagrams and Instruction Sheets:
Astro-Physics Prime Focus Field Flatteners- Exploded diagram showing the field flatteners with a variety of accessories. Note that this is a PDF file. Read hint for viewing this two-page diagram.Installing the CCD Adapter to Use the 2.7" or 4" Field Flatteners with a CCD Camera - Instruction sheet in PDF format.

Attaching the Astro-Physics Field Flattener to Your Pentax 6x7 Camera
- Instruction sheet in PDF format.
67PF462$700.00 JulyAdd 67PF462 To My Cart
67PF56$700.00 JulyAdd 67PF56 To My Cart
67PF582$650.00 in stockAdd 67PF582 To My Cart
67PF69$525.00 in stockAdd 67PF69 To My Cart
67PF79$525.00 in stockAdd 67PF79 To My Cart
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4" Prime Focus Field Flattener for 155 f7 and 140 f7.5 StarFire EDF (S155EDFFF)

The S155EDFFF 4" Prime Focus Field Flattener was originally produced for the 155 f7 StarFire EDF with its 4" focuser and was included with those instruments. It is now available as an accessory for owners of the 155 f7 StarFire EDFS version who have upgraded their 2.7" focusers to the 4" model. It is also the perfect Field Flattener for the 140 f7.5 StarFire EDF when purchased with the optional 4" focuser (140EDF4). These 4" Prime Focus Field Flatteners come with two beautifully machined, velvet-lined aluminum covers to protect the valuable optics inside.

This optical marvel was originally designed to take full advantage of the medium format Pentax 6x7 camera, and will provide pinpoint stars all the way to the edge of its field with no vignetting! It is perfect for today's larger CCD cameras as well. We also offer an adapter that allows this Field Flattener to be used with the more conventional SLR's - either 35mm or digital (including a larger clear aperture version for the full format Canon EOS cameras). The S155EDFFF flattens the field across a full 4" circle without significantly changing the native focal ratio of the telescope - The 155 f7 operates at about f7.3 while the 140 f7.5 will operate at f7.8.

At the present, CCD cameras must be attached using a 2" adapter and nosepiece - see image below left - but we are currently designing a direct interface to the larger format STL series of cameras that will be similar to the ones available for the 155TCC Telecompressor Corrector, the other outstanding 4" imaging accessory for both the 155 f7 and 140 f7.5 StarFire EDF instruments.

Diagrams and Instruction Sheets:
Astro-Physics Prime Focus Field Flatteners- Exploded diagram showing the field flatteners with a variety of accessories. Note that this is a PDF file. Read hint for viewing this two-page diagram. Installing the CCD Adapter to Use the 2.7" or 4" Field Flatteners with a CCD Camera - Instruction sheet in PDF format.

LEFT - The S155EDFFF in place on a 4" draw tube with the A1261 CCD adapter (sold separately) and ADA2003 2" adapter (included with either telescope).

RIGHT - The S155EDFFF shown with its beautifully machined covers.

NEAR RIGHT - The draw tube side of the S155EDFFF.

 

 

FAR RIGHT - The S155EDFFF shown with the bayonet ring removed.

 

 

 

S155EDFFF$2,110.00 in stockAdd S155EDFFF To My Cart
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35mm Camera Adapter with T-Ring to use with 2.7" and 4" Field Flatteners (67RT---)

With T-ring

(67RT - - -, last 3 letters indicate t-ring)

Use this adapter with the 2.7" or 4" Prime Focus Field Flatteners to obtain the best possile results with your 35mm camera - pinpoint from edge to edge. I.D. painted flat and threaded for 48mm filters. See how this part fits into your photographic system in the exploded diagram (PDF file). Read hint for viewing this two-page diagram.

Owners of Canon EOS auto-focus 35mm and digital SLR's may wish to consider the larger, 1.875" clear aperture adapter below. (67RLEOS)

Purchase the adapter with or without the t-ring. T-rings thread easily into place. If you order your camera adapter with a t-ring, the three dashes in the part number will be replaced by three letters, i.e. 67RTNIK if a Nikon t-ring in included. Please specify the t-ring that you wish to use. Order an extra t-ring if you have two cameras. This part can be used with 2.7" field flatteners shipped after May 1994 and 4" field flatteners from any year.

If you have a field flattener that is an earlier model, please call.

Without T-ring
67RT$43.00 in stockAdd 67RT To My Cart
67RTCAN$55.00 in stockAdd 67RTCAN To My Cart
67RTEOS$65.00 in stockAdd 67RTEOS To My Cart
67RTKON$55.00 in stockAdd 67RTKON To My Cart
67RTMAF$65.00 in stockAdd 67RTMAF To My Cart
67RTMAX$65.00 in stockAdd 67RTMAX To My Cart
67RTMIN$55.00 in stockAdd 67RTMIN To My Cart
67RTNIK$55.00 in stockAdd 67RTNIK To My Cart
67RTOLY$55.00 in stockAdd 67RTOLY To My Cart
67RTPTK$55.00 in stockAdd 67RTPTK To My Cart
67RTPTS$55.00 in stockAdd 67RTPTS To My Cart
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SLR Camera Adapter with Large 1.875” Diameter Canon EOS Bayonet (35mm and digital) (67RLEOS)

This SLR Camera Adapter for Canon auto-focus 35mm and digital EOS SLR cameras with its large 1.875" (47.6 mm) inside diameter EOS bayonet minimizes vignetting on full frame chips and on 35 mm film by eliminating the restrictive 1.5” (38 mm) diameter standard T-thread interface. Since the introduction of Canon’s full 35 mm frame digital SLR’s, people have been asking for a solution to the vignetting caused by the small clear aperture of the standard T-ring interface that is universally used to connect telescopes to SLR cameras. This was especially true for Astro-Physics telescope owners who also had either our 2.7” or 4” Field Flatteners. What good were pinpoint stars to the edge of a wide field when the edge of that field was darkened by the T-ring’s vignetting effect? So, in keeping with our commitment to imagers, we introduced a solution!

The adapter body is precision-machined aluminum and is anodized black. The bayonet is machined stainless steel, and both the body and the bayonet are baffled and painted flat black on the inside. The adapter is intended to be used exclusively with Astro-Physics 2.7" and 4" Prime Focus Field Flatteners (except the 160FF). It will position the chip (or film) at the correct distance from the Field Flattener optics for pinpoint stars. If you received your 2.7" Field Flattener prior to May 1994, you will need new aluminum parts to use this adapter. Please call Astro-Physics for details.

Please note: this adapter can NOT be used with Canon manual-focus 35mm cameras (series FD and earlier lenses).
67RLEOS$90.00 in stockAdd 67RLEOS To My Cart
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Gelatin Filter Holder for 2.7" Field Flattener (27GEL1, 27GEL2)
Gelatin Filter Holder for 4" Field Flattener (40GEL1)

These two-piece filter holders were designed to hold gelatin filter sheets for deep-sky, tricolor photography. Purchase gelatin filter sheets from a camera store, cut into a circle slightly larger than the opening (be sure to allow enough material to secure the edges) and install. We suggest that you purchase a separate filter holder for each color filter that you plan to use. Placement of the filters is shown in the exploded diagram (PDF file). Read hint for viewing this two-page diagram.

27GEL2 - Fits all current field flatteners and any shipped after May 1994. Clear aperture of the 2.7" filter is 2.35" (60mm).

27GEL1 - If you have an earlier model (prior to May 1994), we offer part # 27GEL1 with a slightly different thread.

40GEL1 - 4" version designed to fit 4" Field Flatteners.
27GEL1$35.00 in stockAdd 27GEL1 To My Cart
27GEL2$35.00 in stockAdd 27GEL2 To My Cart
40GEL1$45.00 in stockAdd 40GEL1 To My Cart
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6x7 Pentax Camera Adapter for Use with Telecompressor (ADA67P)
Thread this adapter into place then use use the ring shown on the right-hand side of the adapter to lock your camera into position after you have framed your image. This allows you to rotate the camera to achieve your desired composition.

Applications:
Telecompressor - This adapter allows you to use the Telecompressor (27TVPH) with your Pentax 6x7 camera. Your image circle will be approximately 2" fully illuminated. We suggest that you review the exploded diagram (PDF file) showing the telecompressor with a variety of accessories. Read hint for viewing this two-page diagram.

To couple scopes that don't need a field flattener to the Pentax 6x7 - Thread directly onto your Astro-Physics 2.7" focuser, 4" focuser, or any focuser drawtube that measures 2.740" I.D. with 24 TPI in order to use a Pentax 6x7 without a field flattener. This is appropriate for our older 6"f9 and 6"f12 scopes, however, a field flattener is needed for the shorter focal lengths to obtain the best results.
ADA67P$60.00 in stockAdd ADA67P To My Cart
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Piggyback Camera Bracket with Flat Base (PGBCBR)
The unique micro-adjust knobs allow you to frame star fields easily in 2 axes. The camera bracket comes with a flat base and screws that enable you to attach it to the predrilled holes on the top of our mounting rings (10-32 threaded holes spaced 3.00" apart center-to-center). Attach your favorite 35mm camera with wide-field lens and take some terrific Milky Way shots.
PGBCBR$95.00 in stockAdd PGBCBR To My Cart
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Piggyback Camera Bracket without Base (PGBCNB)
Same as the above Piggyback Camera Bracket without the flat base. PGBCNB attaches to the 7" (SB0800) or 10" sliding bar (SB1000) for use with either the Traveler accessory plate (ACPLTR) or 8" Dovetail plate (DOVE08). It also attaches to the 15" sliding bar (SB0800) that is used with the 15" Dovetail plate (DOVE15). It is shown on the 7" sliding bar (not included) in the above photo.
PGBCNB$80.00 in stockAdd PGBCNB To My Cart
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Carrying Case for 80mm Guidescope (C0023)
Protect and carry your 80 x 900mm guidescope with this handy case. We designed it to allow our 4.4" guidescope rings (GR4400) to remain in position on the scope. You don’t have to take them off! The case measures 39.25" x 9.5" x 10.25" and is built like our refractor cases of quality plywood with grey vinyl exterior. The inside is lined with 1" foam. An essential addition if you transport your guidescope.
C0023$150.00 in stockAdd C0023 To My Cart
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4.4" Guidescope Rings (GR4400)
These rings were designed for guidescopes that have an outside tube diameter of approximately 3.5" (88mm). Each ring has three alignment screws, which are adjusted to position the scope. The tips of the stainless steel screws are rounded, however they do not have rubber tips, in order to reduce the possibility of flexure. The protective rings of our guidescope will keep them from marring your tube.

These rings attach directly to the top of our mounting rings or to the 15" sliding bar (SB1500) for use with 15" Dovetail plate (DOVE15). One pair of rings weighs 1 lb. (0.45kg).
GR4400$115.00 in stockAdd GR4400 To My Cart
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CCD Adapters to use 2.7" or 4" Field Flattener with the SBIG ST-8, ST-10,
STL-11000 and Fingerlakes Instruments Cameras (A1260, A1261, A1262)

The most discriminating CCD imagers with large chips may wish to use our field flatteners for the best possible results at the edge of the field. These adapters will preserve the correct spacing from the field flattener to the focal plane of your CCD camera. Choose the correct length for your system.

Important: There are now a huge variety of CCD cameras, filter wheels and other accessories on the market, and all of them have different dimensions in terms of their optical backfocus or light path distance. Even different filter choices will affect the optical distance because of the indexing effect of the filter itself. It is important that you know the specifications of your own particular equipment before deciding on an adapter. The information below provides guidelines - NOT inviolable laws.

Diagrams and Instruction Sheets:

Astro-Physics Prime Focus Field Flatteners
- Exploded diagram showing these CCD adapters with the field flatteners and a variety of other accessories. Note that this is a PDF file. Read hint for viewing this two-page diagram.

Installing the CCD Adapter to Use the 2.7" or 4" Field Flatteners with a CCD Camera
- Instruction sheet in PDF format.

A1260
CCD Adapter to use our 2.7” or 4” Field Flattener with your SBIG ST-8/ST-10 CCD cameras if there is a gap (approximately 0.25”) between the Color Filter Wheel and the camera. Also commonly used with A3503 Extension and ADA204 in several Finger Lakes CCD Applications. Part is hard anodized. Effective length is 0.5".
A1261
Adapter to use our 2.7” or 4” Field Flattener with your SBIG ST-8, ST-10, STL-11000 or Finger Lakes Instruments CCD cameras with the Color Filter Wheel closely coupled to the CCD camera. Part is hard anodized. Effective length is 0.75".
A1262
Adapter to use our 2.7” or 4” Field Flattener with your SBIG ST-8/ST-10 or Finger Lakes Instruments CCD cameras (without a CFW). Part is hard anodized. Effective length is 1.75". Also perfect for the SBIG ST-4000XCM
A1260$40.00 in stockAdd A1260 To My Cart
A1261$40.00 in stockAdd A1261 To My Cart
A1262$40.00 in stockAdd A1262 To My Cart
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2"/T-2 Tapered Nosepiece (AP16T)
2"/T-2 Tapered Nosepiece for SBIG CCD Cameras, SBIG STV, Baader Planetarium Giant Binocular Viewer or any item with T-2 threads. This nosepiece features our unique tapered profile. Attach it to your CCD camera, insert the nosepiece into your 2" adapter and tighten the thumbscrew. The brass locking ring will seat your valuable CCD camera (or other valuable accessory) squarely and solidly into place. The nosepiece has 48mm filter threads and the I.D. is painted flat-black. Compatible with most compression/locking rings that we know of. Not recommended for our 92mm f5 or f7 Stowaway or when using our 2" Thin Adapter ADA2013 (or prior version ADA201). When using these items, we suggest the BP16 nosepiece.
To see the nosepiece as used with a CCD camera, review the exploded diagram. Note that this is a PDF file. Read hint for viewing this two-page diagram. If you own an Astro-Physics focuser, you also may wish to consider our 2" Adapter (ADA2003) that features 3 locking screws. The combination of these two accessories will redefine "rock solid."
AP16T$40.00 in stockAdd AP16T To My Cart
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CCD Telecompressor (CCDT67)

Images Taken with the CCDT67
Barnard 86
Peter Ward
AP 155 StarFire EDF
M57
Roland Christen
AP 10"f14.6 Maksutov-Cassegrain at f9.7
Helix Nebula
Gerald Miller
RCOS 12.5" Ritchey-Chretien
NGC 7582, 7590
and 7599

Daniel Verschatse
RCOS 14.5" Ritchey-Chretien with CCDT67 working at f6.56

Originally developed to tame the focal length of our 10" F14.6 Mak-Cass, this telecompressor will provide full coverage of the ST10E chip with scopes ranging from F9 to F18 focal ratio. The 2-element cemented design transmits close to 99% of the incoming light over the range of 420 to 700 nm. The focal length of the telecompressor optics is 12". For refractors, the field is compressed by 0.67x (when using a Color Filter Wheel). If you have a moving mirror system, the native focal ratio will increase.

The design allows full corner-to-corner illumination of the ST10E chip with most catadioptric telescopes. This design does not add coma to the wavefront, and thus can be used with all flat-field and coma-free telescopes such as Maksutov-Cassegrains, Schmidt-Cassegrains, Ritchey-Chretiens and refractors. The inherent resolution of the telescope is not compromised when using this compressor.

Please review the exploded diagram to see how this item will fit into your imaging system. If you want a higher compression ratio, but do not use the color filter wheel, you can add two T-2 extension rings that we offer from Baader Planetarium. Thread both the 15mm T-2 Extension Ring (part # BP25A) and 7.5mm Extension Ring (part # BP25C) between the CCD camera and the nosepiece. This will approximate the length of the color filter wheel. You can also experiment with a single extension or other combinations. Although it may be possible to use additional T-2 extensions (there is also a 40mm version, part # BP25B) to gain even further compression, you may not have enough backfocus to do so. Also please note that as you increase compression, you decrease the size of the fully illuminated circle at the focus point. At 0.67x, the CCDT67 will cover the chip of the ST10E. It can never cover the chip of an STL series camera or the newer large size digital SLR chips, because its clear aperture is no larger than their CCD chips.

  • Clear aperture is 1.75", designed to screw into our 2” Tapered Nosepiece (AP16T) or any other 2" nosepiece with 48mm threads that is designed for CCD cameras. It will not thread all the way into the nosepiece provided with SBIG cameras since the threads of that nosepiece are not deep enough.
  • 0.67x Compression ratio for SBIG ST7/8/10 + Color Filter Wheel, when used with refractors. Fully illuminated circle: 30mm
  • 0.75x Compression ratio for SBIG ST7/8/10 (without Color Filter Wheel or T-2 extensions), when used with refractors. Fully illuminated circle: 34mm
  • Approximately 5 inches of back focus is needed to achieve focus on the CCD chip. It will not work with the AO7.
  • The focal length of the CDD Telecompressor is 12" (305 mm)
This image of the Ring Nebula was taken with the Astro-Physics 10" f14.6 Maksutov-Cassegrain and the CCD Telecompressor using an ST10E with the color filter wheel. Once you receive your CCD Telecompressor, we invite you to submit your images so that they can be featured here, all scopes will be welcome.

We highly recommend our 2" Tapered Nosepiece (AP16T) for your CCD camera. When used with the brass locking ring of most of our adapters, this unique barrel will seat your valuable CCD camera squarely and solidly into place. Even a single thumbscrew interface will be improved. If you are using the thin 2" adapter (part # ADA2013) or the 2" adapter of the 92mm f5 or f7 Stowaways, we suggest that you use the 2" nosepiece that came with your camera or the 2" nosepice from Baader Planetarium (we offer as part #BP16).

CCDT67$148.00 in stockAdd CCDT67 To My Cart

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CCD Imaging Optics for the 160 StarFire EDF and both the 140 and 155 StarFire EDF

160 Field Flattener and Telecompressor for 160 & 155

Click Picture for Link to Page!

160 f7.7 Prime Focus Field Flattener (160FF)
160 f5.7 Telecompressor Corrector (160TCC)
0.76x Telecompressor Corrector for the 140 f7.5 and 155 f7 (155TCC)
Adapters (ADATCC1, ADATCC2, ADATCC3)

As CCD chip size continues to increase, more and more serious imagers are looking for precision optical devices to assist them in their endeavors. Back in "the old days," medium format film cameras were the kings for astro-imagers, and Astro-Physics developed the 4" Giant Focuser and individual Prime Focus Field Flatteners for its faster focal ratio, big refractors to take full advantage of the film size. CCD cameras have now reached the size where they too can benefit from larger components designed to fit the 4" Focuser.

 

The special CCD Imaging Optics page gives a detailed description of the next generation cutting edge optics now available for the 160 f7.5 StarFire EDF and both the 140 f7.5 and the 155 f7 StarFire EDF (with 4" Focuser). These optics were specifically designed to work with the very popular SBIG lines of cameras, especially the STL line. For detailed descriptions and ordering information, click on the picture above or on the link below.  

CCD Imaging Optics Page Link

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Copyright © 2004, Astro-Physics, Inc. - All Rights Reserved
This page was last modified: March 17, 2008

Astro-Physics, Inc.
11250 Forest Hills Road, Rockford, IL  61115, U.S.A.
Phone: 815-282-1513   Fax: 815-282-9847