3.5" Prime Focus Field Flattener for 130GTX or prior 130EDFGT upgraded to 3.5" Focuser (13035FF)

Brand :


The new 3.5” Field Flattener for the 130 Starfire GTX is a redesigned housing that utilizes the superb optics of the 67PF562.  It provides pin point stars to the very corners of your CCD or DSLR sensor. The 130 GTX images at f/6.7 with the Flattener. It accommodates today’s largest sensors (even the KAF-50100).

Conveniently, it uses the same camera adapters as the QUADTCC (and those of the flatteners and TCCs of the 160 and 175 Starfires). 

The backfocus spacing from the rear flange is:
With Backfocus Spacer - 80.8 mm +/- 2.5 mm
Without Backfocus Spacer - 102.9 mm +/- 2.5 mm

Field of View with 130 StarFire GTX and 3.5" Field Flattener

Fully Illuminated Circle
35 mm Full Frame CCD

2.6” (65 mm)
18.0 x 13.5 mm
22.3 x 14.9 mm
36 x 24 mm
36.8 x 36.8 mm

4.3° (256 min.)
1.2° x .88° (71 x 53 min.)
1.5 ° x .98° (88 x 59 min.)
2.4° x 1.6° (142 x 97 min.)
2.4° x 2.4° (146 x 146 min.)

Select the Appropriate Adapter to use with Your Camera

Diagrams and Instruction Sheets

Custom Adapters
If you need an adapter that is not listed above, we recommend that you contact PreciseParts.  Refer to the link for the spacing requirements document above.


Customers Also Viewed

Mounting Rings


Mounting Rings

Mounting rings attach to your mounting plate and hold your tube assembly firmly in place. The tops