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NGM 0.33X
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Optec, Inc.
NextGEN Mounting Plate Finder
 
Camera Type Tube Length Thread Stock Number
SBIG ST-6B 
1.74 
17392-1.74 
SBIG ST-7/8/9/10/2000 with old 0.20-inch thick front plate on camera and D block with T-thread
1.43 
17392-1.43 
SBIG ST-7/8/9/10/2000 with new 0.25 inch thick  front plate on camera and D-block with T-thread
1.38
17392-1.38 
SBIG ST-7/8/9/10/2000 with CFW-8/8A/9 filter wheel with old 0.20 inch thick front plate and no D-block
0.72 
17392-0.72 
SBIG ST-7/8/9/10/2000 with CFW-8/8A/9 filter wheel with new 0.25 inch thick front plate and no D-block
0.67
17392-0.67 
SBIG ST-7/8/9/10/2000 with CFW-10 filter wheel mounted directly on camera without  face plate and with D-block
0.80
17392-0.80 
For more information about the backfocus distance for SBIG cameras with or without the CFW-8/8A/9/10 filter wheels, see: www.sbig.com/sbwhtmls/stbackfocus.htm
 
 
SBIG ST-402ME, ST-237, ST-5C & STV 
1.71 
17392-1.71 
Meade Pictor 416 
1.69 
17392-1.69 
Starlight Xpress MX & HX series 
1.67 
Pentax 
17395-1.67 
Starlight Xxpress SXV-H9 T-thread camera 
1.67 
17392-1.67 
Finger Lakes Instruments MaxCam with SCT-thread 
1.30 
SCT 
17396-1.30 
Any C-mount camera with standard lens mount
1.69 
17399-1.69 
Apogee KX1, KX2, KX14, KX260 and KX85 
1.70 
SCT 
17396-1.70 
Apogee AP1, AP2, AP260, AP7AB, AP7AP and AP47p 
1.23
SCT 
17396-1.23 
Apogee AP6 
0.96 
SCT 
17396-0.96 
Apogee AP8 
1.11 
SCT 
17396-1.11 
Apogee AP8B and AP8P 
1.17 
SCT 
17396-1.17 
Meade Deep Sky Imager
2.05
17392-2.05 
Meade Deep Sky Imager Pro with RGB filter bar
1.39
17392-1.39 
SAC10 from SAC Imaging Systems
 1.65
17392-1.65 
View Price List
Mounting Plates
These mounting plates fit on the back dovetail of the NextGEN and are secured in place by three setscrews located in the mounting plate 120 degrees apart. It is important that the back focus distance be set as closely as possible for the NextGEN reducers which is why each mounting plate has a unique length for every model camera. Backfocus distance should be known to +/- 0.04 inch (1mm) for best performance. Use the table below to find the appropriate mounting plate for your camera. If your camera is not listed below and you know the back focus (BF) distance and thread type for your camera, you can find the stock number as follows:
The minimum tube length available for the NGM (0.33X) is 0.52 inches. It is 0.67 inches for the NGW (0.5X) and the NGUW (0.70X).
T-thread #17392
SCT-thread #17396
Pentax-thread #17395
C-thread #17399
tube length
where tube length = 2.39 - BF in inches
Contact/Order
tube length 
where tube length = 2.39 - BF in inches
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