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Full frame 6x-10x recomendations?

 
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JohnyM



Joined: 24 Dec 2013
Posts: 166

PostPosted: Mon Dec 11, 2017 3:39 pm    Post subject: Full frame 6x-10x recomendations? Reply with quote

Any recomendations for lens between 6x and 10x that covers full frame? Due to subject nature i need good corners. I need a bridge between Mp-E65 and episcope.

A7RII no AA; 4,5um pixel pitch; bellows or tube mounted. I've got good 100mm/135mm/200mm tube lenses.

At the moment im using Nikon BE Plan10x that gives me good 135-200mm and acceptable 100mm corners on Aps-C. Looking for something similar for full frame as i would like to ditch aps-c for microscopy only.
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ChrisR
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Joined: 14 Mar 2009
Posts: 7257
Location: Near London, UK

PostPosted: Mon Dec 11, 2017 4:24 pm    Post subject: Reply with quote

Look at Mitutoyo 7.5x?
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Chris R
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JohnyM



Joined: 24 Dec 2013
Posts: 166

PostPosted: Mon Dec 11, 2017 5:13 pm    Post subject: Reply with quote

Any reason to pick it over 10x which have higher Na, almost same WD and is much cheaper?
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rjlittlefield
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Joined: 01 Aug 2006
Posts: 18248
Location: Richland, Washington State, USA

PostPosted: Mon Dec 11, 2017 5:27 pm    Post subject: Reply with quote

Yes. The 7.5X has a much larger image circle, so it provides a lot more freedom for adjusting magnification up or down with different tube lenses.

See http://www.photomacrography.net/forum/viewtopic.php?p=208243#208243 and the surrounding thread.

--Rik
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