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 Post Posted: Sat Sep 02, 2017 9:20 pm 
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Anyone know? Trying to get the right extender for my ff/fr.


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 Post Posted: Tue Sep 05, 2017 9:04 am 
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back focus distance is 12.5mm

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 Post Posted: Fri Sep 08, 2017 12:43 am 
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Ok. So just to be clear, I have the camera mounted directly to the ZWO EFW Mini filter wheel. So that would mean that I have 12.5 mm for the camera and another 20 mm for the filter wheel for a total of 32.5 mm? Would this be correct?


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 Post Posted: Mon Sep 11, 2017 12:52 pm 
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is your camera cooled version or uncooled version?
you need one T2-T2 to connect the camera and EFW, so the total distance is 12.5+2+20

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 Post Posted: Tue Sep 12, 2017 7:30 am 
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According to this schematic from ZWO distance from front of camera to sensor plane seems to be 17,5 mm and from top of round housing to sensor 2,5 mm.

Attachment:
ASI-Cooled-Cameras-16-1024x768.jpg
ASI-Cooled-Cameras-16-1024x768.jpg [ 74.18 KiB | Viewed 118 times ]


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 Post Posted: Wed Sep 13, 2017 1:33 am 
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Juicy6 wrote:
According to this schematic from ZWO distance from front of camera to sensor plane seems to be 17,5 mm and from top of round housing to sensor 2,5 mm.

Attachment:
ASI-Cooled-Cameras-16-1024x768.jpg


sorry, I don't know you mean the cooled version
the newest cooled 178 we used the 1600 design, so the back focus is 6.5mm only

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