Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

sgl_imaging_challenge_banner_supernovae_remnants_winners.thumb.jpg.a13d54fa405efa94ed30e7abd590ee55.jpg

Rob

FF/FR for AltairAstro ED70.. will this work?

Recommended Posts

Guys,

I'm saving for a FF for my AA ED70. Will the OVL 0.8 work ok?. https://www.firstlightoptics.com/reducersflatteners/ovl-field-flattener.html

The numbers look right!. but I'm unsure if the focus path will be effected to much?. I also like that its a flattner without focal reduction. I also like the price :). I can see AA offer a similar one too https://www.altairastro.com/lightwave-1.0x-field-flattener-for-f5.5-to-f6.25-refractors.html

I know theres a dedicated FF/Reducer from AA https://www.altairastro.com/canon-dslr-0.8x-reducer-flattener-kit-for-starwave-70ed-f6-refractor.html

And the AA one is pricey!

Thanks Rob

Share this post


Link to post
Share on other sites

In the absence of any definite answers I'd say as it's designed for F6 it will be fine, might have to do some trial and error on spacing though  

  • Like 1

Share this post


Link to post
Share on other sites

Hi Rob

As you say, the first item you pointed to is just a flattener. Only the third one is a 0.8x reducer/flattener. I have a Lightwave 0.8x reducer on an f6 80mm and which seems to work fine though I've not tried it with a dslr or with an osc. I think the third item is the same reducer/flattener as the lightwave but includes the dslr fitting kit.

Louise

Share this post


Link to post
Share on other sites

Thanks Guys,

I'm taken with just the Flattener because I want to experiment with alternative imaging, and keep the scope at F6. It was just worried about bringing to focus with the DSLR in/out. I'm hoping this should not change the racking too much?.

Share this post


Link to post
Share on other sites

After a little more googling it appears another has been using the https://www.altairastro.com/lightwave-1.0x-field-flattener-for-f5.5-to-f6.25-refractors.html 

As I'm going to be DSLR only I think this might be the one I'm going for. The EOS mating ring also provides the 10mm spacing of the 55mm required. So should be plug n play!

  • Like 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.