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Macro lens for Pentax 645D

kasperbergholt
Posted 14/05/2023 - 16:17 Link
Clever people,

Having got some very good feedback in this thread I did some thinking after seeing the used price of a 645D, which would be a more long-term investment.

Which of lenses specifically for the medium format would do great for macro photography of vacuum tubes, which is going to be a project for the next couple of years documenting adn archiving for Radiumuseum and Wikipedia.

Something that would work for portraits too would be nice.

Thanks in advance,

Kasper
-- Kasper Bergholt
Edited by kasperbergholt: 14/05/2023 - 16:20
SteveF
Posted 15/05/2023 - 15:50 Link
The technical details for Pentax 645 lenses are here:

https://www.pentaxforums.com/lensreviews/SMC-Pentax-645-Medium-Format-Lenses-i4....

There are three macro lenses available - 90mm D-FA, 120mm FA and 120 A - in the section for telephoto primes.

I only have experience of the 120 A, (with a 645N) so cannot comment on the other two. I have upgraded to a 645D, but haven't used the macro lens on it yet.

I do wonder if the minimum focussing distance of of 40cm might be a problem for your proposed application?

Hope that's useful.
kasperbergholt
Posted 15/05/2023 - 17:56 Link
SteveF wrote:
The technical details for Pentax 645 lenses are here:

https://www.pentaxforums.com/lensreviews/SMC-Pentax-645-Medium-Format-Lenses-i4....

There are three macro lenses available - 90mm D-FA, 120mm FA and 120 A - in the section for telephoto primes.

I only have experience of the 120 A, (with a 645N) so cannot comment on the other two. I have upgraded to a 645D, but haven't used the macro lens on it yet.

I do wonder if the minimum focussing distance of of 40cm might be a problem for your proposed application?

Hope that's useful.

Thank you for the reply and the sum up of lenses. The 90mm is a beauty!

But I think the minimum focus distance will be a problem for this project. I'll try and see if I can borrow one or demo one before buying. But my current thought it that it would be better to stick to full-frame.

What are your impressions of the 645D?
-- Kasper Bergholt

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