I GOT MY T-RING TODAY

Focusers, Filters, Barlows etc..

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I GOT MY T-RING TODAY

Postby Stepping Beyond » Tue Jan 02, 2018 11:04 pm

I'm ready after a year , to get everything put together and noticed while attaching my camera to the EFW mini 5 pos. That I'm getting a rubbing noise after putting my extension tube on the other side of the EFW, it doesn't do it if I don't screw it all the way down but, not securing it snug would make my Image Train off wouldn't it ? Help please? ASI174MM cooled - threaded male t-ring that came with the efw extension tube and t- ring to Paracorr t 2 lens assembly.
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Re: I GOT MY T-RING TODAY

Postby Sam » Thu Jan 04, 2018 2:37 pm

do you mean your filter is too high?
you can add T2 spacer with your T ring
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Re: I GOT MY T-RING TODAY

Postby Stepping Beyond » Fri Jan 05, 2018 3:40 pm

It was the T2-25A that protrudes past the efw cover plate when screwed all the way in , I've got a 1mm spacer on the way . Thanks Sam for your speedy response to this dilemma . I'm a 1st efw user and unsure about the spacing , I think I'm at 54mm instead of the 55mm . I don't have a caliper to measure so I eyeball it and hoping this will make the required distance.
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Re: I GOT MY T-RING TODAY

Postby Sean.Wang » Fri Jan 26, 2018 2:08 pm

Add one spacer will reach the best back focus.
Don't worry, usually comma corrector have +/- 2mm range for shooting.
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