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Macro Getting really close

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  #16  
Old 27th March 2018
Harold Gough Harold Gough is offline
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Re: A new forum board for macro discussion

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Originally Posted by Phill D View Post
Graham will they work on a digital camera directly? I have an old microscope packed away awaiting resurrection one day.
As I understand it, they need to be infinity objectives and the best use is on the front of e.g, a 200mm prime. They have to be of fairly high quality to be worth the effort. RMS to filter thread adapters are available.

Harold
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  #17  
Old 27th March 2018
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Graham_of_Rainham Graham_of_Rainham is offline
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Re: A new forum board for macro discussion

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Originally Posted by Harold Gough View Post
As I understand it, they need to be infinity objectives and the best use is on the front of e.g, a 200mm prime. They have to be of fairly high quality to be worth the effort. RMS to filter thread adapters are available.

Harold
Thanks for that info. I've not tried them that way. I see some cardboard DiY mounts being made.

These are Vickers lenses "Made in England"
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  #18  
Old 27th March 2018
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Re: A new forum board for macro discussion

Great info Graham and Harold. Lots of possibilities to play with on rainy days.
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  #19  
Old 29th March 2018
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Re: A new forum board for macro discussion

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... I would love to have a play with those!
PM Your address and I'll send you them.

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  #20  
Old 1st May 2018
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Re: A new forum board for macro discussion

Quote:
Originally Posted by Harold Gough View Post
As I understand it, they need to be infinity objectives and the best use is on the front of e.g, a 200mm prime. They have to be of fairly high quality to be worth the effort. RMS to filter thread adapters are available.

Harold
Harold
That is a simplistic view of them whether they are infinity or finite objectives
Infinity objectives are mounted on a lens of between 100 and 300 mm focused at infinity.
Finite objectives are mounted on tubes.

What working distance they have as something at 1.5mm will be very difficult to use

Much of the info I need to know is not on these objectives.

see here for more info
http://extreme-macro.co.uk/microscope-objectives/

http://www.mjkzz.com/single-post/201...-For-Beginners

http://www.photomacrography.net/foru...ic.php?t=12147
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Old 1st May 2018
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Re: A new forum board for macro discussion

Harold
What you said was not wrong for some objectives.


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  #22  
Old 1st May 2018
Harold Gough Harold Gough is offline
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Re: A new forum board for macro discussion

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Originally Posted by alfbranch View Post
Harold
What you said was not wrong for some objectives.
I know. Anyway, I gave it only as my understanding, not in anyway authoritative.

My Photar lenses are, in effect, microscope lenses in all but name and they work on tubes (not tube lenses), as do various other non-camera lenses I use for macro.

Harold
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