Atik Cameras

Author Topic: Question about 2" nosepiece!!  (Read 3155 times)

porthrajgomes

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Question about 2" nosepiece!!
« on: July 25, 2019, 10:46:34 am »
Sorry if this has been asked before, I actually couldn't find anything on the net...

I just took possession of a color infinity and would like to use a 2" TPO .5x focal reducer and possibly 2" filters down the road. I'm trying to stay away from 1.25" stuff to reduce the chance of vignetting.

How can I use 2" threaded items? Are the threads that the 1.25" supplied adaptor M48 x 0.75 (normal 2" scope threads? If so and I can thread the focal reduce right onto the camera, will I need tubes or a nosepiece to insert into the back of my refractor?

I'm kind of lost here and could use some advice :-)

vince

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Re: Question about 2" nosepiece!!
« Reply #1 on: July 26, 2019, 10:56:54 am »
Hello,

The thread on the front of the Infinity is a standard T thread which is M42 x 0.75mm, the camera has a back focus of 13mm and your reducer will have a optimal distance that it need to be away from the sensor to give the 0.5 reduction. What type of reducer do you have?

Best regards
Vince