Search found 200 matches
- Sun Jul 13, 2014 8:31 am
- Forum: Equipment Discussions
- Topic: New Nikon D810 body to have EFSC
- Replies: 10
- Views: 4514
. . . Jim Kasson, a very very accomplished and energetic guy (up there in the league with Rik), just posted his conclusion from months of using the Sony A7r (definitely fully AA-less) and D800e side-by-side on the same subjects that he sees no difference whatever in resolution. See: http://www.dpre...
- Sat Dec 21, 2013 11:12 am
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: Scorpions are easier to stack than spiders! :)
- Replies: 10
- Views: 5486
- Tue Nov 19, 2013 10:30 am
- Forum: General Discussion Forum and Community Announcements
- Topic: Site
- Replies: 12
- Views: 4715
- Fri Sep 13, 2013 2:11 pm
- Forum: Equipment Discussions
- Topic: Microscope objectives on an DSLR
- Replies: 5
- Views: 2241
Re: Microscope objectives on an DSLR
Hi there people.. I see a lot of people use microscope objectives on an DSLR. I think the distance to the specimen will be short. Is there any website or a table that can give me the magnification and distance to the specimen ? Like what magnification will I obtain with i.e 4x objective ? And what ...
- Tue Aug 06, 2013 11:37 am
- Forum: Beginners Macro
- Topic: Using microscope objective for macro imaging
- Replies: 3
- Views: 2347
Re: Using microscope objective for macro imaging
[Posting moved to here from Beginners Micro Forum] Hello: I'm thinking of using microscope objectives for macrophotography. Since I'll be using a full-frame DSLR I understand it's preferable to use an infinity-corrected objective to fully cover the frame. My plan is to use a 180mm camera lens as th...
- Tue Jul 23, 2013 1:22 pm
- Forum: Beginners Macro
- Topic: Wetzlar 10X HL infinity
- Replies: 6
- Views: 2482
Re: Wetzlar 10X HL infinity
Having seen some of the superb images posted using a microscope objective fitted on the end of a telephoto lens I am thinking of building a setup to have a go. Does anyone know if a Leitz Wetzlar industrial microscope Lens HL 10x/0.20 infinity would be any good for this application? Any info would ...
- Wed Jul 03, 2013 12:43 pm
- Forum: Equipment Exchange
- Topic: Nikon CFI objective Vials
- Replies: 6
- Views: 2431
- Mon Jul 01, 2013 10:11 am
- Forum: Equipment Discussions
- Topic: help choosing 5x lens
- Replies: 18
- Views: 7984
Regarding sources, I recently received a positive report of purchasing a 10X Nikon CFI60 objective (MRL00102) through http://www.seoenterprises.com/shop/product.php?productid=16268&cat=257&page=1 . I have no personal experience with SEO Enterprises, but the person who wrote to me reported that "I g...
- Mon Jul 01, 2013 8:58 am
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: Half Ant Portrait
- Replies: 12
- Views: 3015
I just fall in with mr Craig Gerard here: This is a very, very good picture! .....some thoughts about lighting, this is a subject that is diffucult to handle in terms of illumination, to much light and you risk to blow out the highlights. An even and well illuminated image. Very well done! I don't k...
- Thu Jun 27, 2013 12:26 pm
- Forum: Equipment Discussions
- Topic: help choosing 5x lens
- Replies: 18
- Views: 7984
To go "better" and to 5x, the objectives get more expensive, such as the Mitutoyo apo 5x NA 0.15 (working distance, from memory about 30mm) Memory failure :o The correct working distance for the 5X Mitutoyo M Plan Apo is 34mm and the na is 0.14 not 0.15. I agree about the Mitutoyo m plan apo 5X na ...
- Thu Jun 27, 2013 11:38 am
- Forum: Equipment Exchange
- Topic: Mitutoyo vials
- Replies: 5
- Views: 2650
- Sun May 19, 2013 1:24 am
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: Tiny Wasp
- Replies: 8
- Views: 2186
Jody, Nice stack! I happen to like the colored background. I don't understand Michael's concern about f/2.8. For me, at 5X, f/2.8 is the sharpest setting for my MP-E. This gives an effective aperture about f/16.8, just about ideal for the 1D Mark III's full frame sensor. --Rik I also like the color...
- Sat May 11, 2013 12:51 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Reduced NA gives more detail
- Replies: 38
- Views: 18226
I'm struggling to see exactly what you mean. :? In a high-pixel output image, you'd only use the reduced NA parts where it's beneficial. If you used a lower magnification lower NA objective for a web image, and if LoCA reared its head, it might be possible to use PS Blending Modes to combine images...
- Sat May 11, 2013 12:35 am
- Forum: Equipment Discussions
- Topic: Big Jansjö's lil bro
- Replies: 8
- Views: 5162
They are ok and quite handy and could be used in varying situations. Ikea has now stated the Color Temperature to 2700 Kelvin. I think the Color Temperature of the Jansjö's have changed over time. Personally a like to try to raise the Color Temperature in my studio setup lighting. I have looked for ...
- Thu May 09, 2013 5:51 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Reduced NA gives more detail
- Replies: 38
- Views: 18226
Um, no, I haven't! Why should reducing the NA lead to CA? I can see it happening due to the iris being in the "wrong" place, perhaps, but not as a result of swapping objectives. It could mean hand-retouching rather than letting the stacker combine images. Longitudinal chromatic aberration. This abe...