www.photomacrography.net :: View topic - Looking for advice on achieving 10-20x (FF+100mm2.8L)
www.photomacrography.net Forum Index
An online community dedicated to the practices of photomacrography, close-up and macro photography, and photomicrography.
Photomacrography Front Page Amateurmicrography Front Page
Old Forums/Galleries
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
Looking for advice on achieving 10-20x (FF+100mm2.8L)

 
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> Macro and Micro Technique and Technical Discussions
View previous topic :: View next topic  
Author Message
MacroLab3D



Joined: 31 Jan 2017
Posts: 61
Location: Ukraine

PostPosted: Mon May 01, 2017 9:09 am    Post subject: Looking for advice on achieving 10-20x (FF+100mm2.8L) Reply with quote

HI. I read a lot of topics and still not sure which option best for me.

I have Canon 5DII (Full frame sensor) with MP-E65 and Cognisys macro rails. And i feel like 5X is not enough magnification anymore. I wish i can go to 10-20X. Also MP-E65 blocking a lot of light at 5X.

I have Canon 100mm 2.8L Macro Lens, also i have 24-70L zoom lens.

As far as i understood,
Nikon 10x Plan Achromat Infinity Objective Part # MRL00102
will give me same 5X but with better quality and less light block. Which is not worth switching IMHO.

Would you be so kind and give me the best option to date?

Thanks!
Back to top
View user's profile Send private message Visit poster's website
JohnyM



Joined: 24 Dec 2013
Posts: 319

PostPosted: Mon May 01, 2017 10:29 am    Post subject: Reply with quote

10x/0.25 is F1.8 lens, ulike mp-e 65 which is 2.8. Big difference imo. 10x/0.25 goes up to 10x with no big deal. Also 10x/0.25 is sharpest at widest aperture, is Mp-e like that?
Back to top
View user's profile Send private message
Charles Krebs



Joined: 01 Aug 2006
Posts: 5805
Location: Issaquah, WA USA

PostPosted: Mon May 01, 2017 12:14 pm    Post subject: Reply with quote

You can get away with using your 100mm f2.8L macro as a "tube lens" with APS-C and smaller sensors. But there is a good possibility you will not be satisfied with the edge and corner quality when used on a full frame camera.

With a 200mm tube lens the particular objective you referenced should give you a good 10X on a full-frame sensor. How much lower you can go (with a shorter focal length tube lens) is something you will need to try and see for yourself.
_________________
http://www.krebsmicro.com
Back to top
View user's profile Send private message Visit poster's website
MacroLab3D



Joined: 31 Jan 2017
Posts: 61
Location: Ukraine

PostPosted: Tue May 02, 2017 1:23 am    Post subject: Reply with quote

Thank you for your opinions, JohnyM and Charles.

This is what i am going to do:

Buy 10x/.25, together with adapter to my 100mm, so i can start to learn new gear with dark corners and 5X but still.
Later i am going to add Canon EF 200mm f/2.8L II USM to replace 100mm and get full frame 10X. And later (one can dream) hopefully add here A7RII.

This 200mm lens is going to work? No one tested those?

Thank you.
Back to top
View user's profile Send private message Visit poster's website
Charles Krebs



Joined: 01 Aug 2006
Posts: 5805
Location: Issaquah, WA USA

PostPosted: Tue May 02, 2017 1:05 pm    Post subject: Reply with quote

Quote:
This 200mm lens is going to work? No one tested those?

I'm nearly certain someone on the forum has used, or uses, that lens. I can't remember who, but if I recall correctly the results were very good. But I do not recall the format used. I think some searching should find it.

A big question about using camera lenses for tube lenses has to do with their construction. If the "entrance pupil" is deep in the lens (far from the front) it may not be a good lens to use as a "tube lens". This is especially true with a 24x36mm sensor.
_________________
http://www.krebsmicro.com
Back to top
View user's profile Send private message Visit poster's website
OioMik



Joined: 06 May 2013
Posts: 22

PostPosted: Mon Apr 16, 2018 6:25 am    Post subject: Reply with quote

Hallo,
has someone tried that lens on FF and 200mm lens?
i would like to buy it form my 5dI+70-200 tele to make some 10x photos.
i am a bit concerned about vignetting.

Thank you

MacroLab3D wrote:
Thank you for your opinions, JohnyM and Charles.

This is what i am going to do:

Buy 10x/.25, together with adapter to my 100mm, so i can start to learn new gear with dark corners and 5X but still.
Later i am going to add Canon EF 200mm f/2.8L II USM to replace 100mm and get full frame 10X. And later (one can dream) hopefully add here A7RII.

This 200mm lens is going to work? No one tested those?

Thank you.
Back to top
View user's profile Send private message
Beatsy



Joined: 05 Jul 2013
Posts: 1357
Location: Malvern, UK

PostPosted: Mon Apr 16, 2018 7:40 am    Post subject: Reply with quote

OioMik wrote:
Hallo,
has someone tried that lens on FF and 200mm lens?
i would like to buy it form my 5dI+70-200 tele to make some 10x photos.
i am a bit concerned about vignetting.



I haven't used the specific objective you're asking about, but have used the Canon 70-200 IS L II as a tube lens for a 10x Mitty and a Nikon CF Plan 5/0.13 in the past.

It worked fine with those. If you're using the tele at 200mm, I don't think there would be any problem with vignetting - the tele certainly won't cause it (but I suppose the objective might). Not sure if this helps at all, but some samples here...

Nikon CF 5/0.13 on Canon 70-200mm
http://www.photomacrography.net/forum/viewtopic.php?t=26762

Mitutoyo 10x M Plan APO on Canon 70-200mm (adapted onto Sony A7rii)
http://www.photomacrography.net/forum/viewtopic.php?t=31894

Edit: oops - just noticed the first link is showing results from a crop-sensor 7d, so not relevant to your question. Ignore that one.
Back to top
View user's profile Send private message
OioMik



Joined: 06 May 2013
Posts: 22

PostPosted: Mon Apr 16, 2018 11:14 am    Post subject: Reply with quote

Thanks!

Beatsy wrote:
OioMik wrote:
Hallo,
has someone tried that lens on FF and 200mm lens?
i would like to buy it form my 5dI+70-200 tele to make some 10x photos.
i am a bit concerned about vignetting.



I haven't used the specific objective you're asking about, but have used the Canon 70-200 IS L II as a tube lens for a 10x Mitty and a Nikon CF Plan 5/0.13 in the past.

It worked fine with those. If you're using the tele at 200mm, I don't think there would be any problem with vignetting - the tele certainly won't cause it (but I suppose the objective might). Not sure if this helps at all, but some samples here...

Nikon CF 5/0.13 on Canon 70-200mm
http://www.photomacrography.net/forum/viewtopic.php?t=26762

Mitutoyo 10x M Plan APO on Canon 70-200mm (adapted onto Sony A7rii)
http://www.photomacrography.net/forum/viewtopic.php?t=31894

Edit: oops - just noticed the first link is showing results from a crop-sensor 7d, so not relevant to your question. Ignore that one.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> Macro and Micro Technique and Technical Discussions All times are GMT - 7 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group