Possibly a Nikon CFI Plan Apo 4/0.20 or an Olympus UPlanApo 4/0.16 pushed to approximately 5x with tube lenses of the appropriate focal lengths (250mm and 225mm, respectively).RobertOToole wrote:Any ideas or suggestions for a 5x test?
Search found 635 matches
- Sat Sep 22, 2018 9:28 pm
- Forum: Equipment Discussions
- Topic: 5x Magnification Ideas and Suggestions
- Replies: 27
- Views: 4290
Re: 5x Magnification Ideas and Suggestions
- Sat Sep 01, 2018 5:23 am
- Forum: Equipment Discussions
- Topic: (LSA || DCR150 || ITL200) ? FF : CROP
- Replies: 58
- Views: 7902
Hi David, Many thanks for the test! Can you change the power of the Vivitar 283? If yes, which value have you used? I’m asking for that because your diffuser of Leelux 400 absorbs a lot of light. BTW, what is a paper Waterhouse stop ? BR, ADi The Leelux 400 absorbs a lot, plus I used an inner cylin...
- Sat Sep 01, 2018 5:07 am
- Forum: Equipment Discussions
- Topic: (LSA || DCR150 || ITL200) ? FF : CROP
- Replies: 58
- Views: 7902
- Fri Aug 31, 2018 8:39 pm
- Forum: Equipment Discussions
- Topic: (LSA || DCR150 || ITL200) ? FF : CROP
- Replies: 58
- Views: 7902
Hello everybody, Has anybody tested the tube-lenses 360mm / 300mm / 240mm ? Hello Adalbert, I had hoped to do show you a comparison between some large format lenses in those focal lengths, but unfortunately found I had misplaced a few important components for my Aristophot stand, which I have negle...
- Wed Aug 29, 2018 5:47 am
- Forum: Equipment Discussions
- Topic: (LSA || DCR150 || ITL200) ? FF : CROP
- Replies: 58
- Views: 7902
What about this one (OK, is expensive but APO) https://www.ebay.de/itm/Rodenstock-Apo-Ronar-9-360mm-14inch-Objektiv-lens-90170/332098746576?hash=item4d52a0b8d0:g:CnYAAOSw5cNYg1lT BR, ADi I previously found the Apo-Ronar 240mm f/9 to be very free of chromatic aberration, but my copy was one that may...
- Tue Aug 28, 2018 10:51 am
- Forum: Equipment Discussions
- Topic: (LSA || DCR150 || ITL200) ? FF : CROP
- Replies: 58
- Views: 7902
I'd like to reinforce what Jorgen said about focal length vs format size. If you are happy with a given objective on a tube lens of focal length 200mm on APS, you will get exactly that same image, with same corner quality, filling the FF sensor if you use change to a tube lens of 300mm. I am using ...
- Sat Aug 11, 2018 11:41 am
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: Scotch Thistle
- Replies: 5
- Views: 1621
- Thu Aug 09, 2018 7:55 am
- Forum: Equipment Discussions
- Topic: Tube Lens Test With MITUTOYO 5X M Plan APO
- Replies: 66
- Views: 13621
I hope this question doesn't take the thread off topic, if it does I'll gladly start a new thread. It should be an easy one to answer by those more versed in tube lenses than I: is image circle affected by the tube lens or is it dictated by the objective? From my experience, it's affected by both. ...
- Wed Aug 08, 2018 6:46 pm
- Forum: Equipment Discussions
- Topic: Tube Lens Test With MITUTOYO 5X M Plan APO
- Replies: 66
- Views: 13621
That little lens continues to amaze. I've finished up shooting two big tests that I haven't published yet. 17 lenses at 2.1x and 8 lenses (5 lenses and 3 objectives) at 3x. Can you guess the top lens in each of those? It took a NA0.20 objective to beat the Minolta, it beat a Nikon Objective and was...
- Wed Aug 08, 2018 6:00 pm
- Forum: Equipment Discussions
- Topic: Tube Lens Test With MITUTOYO 5X M Plan APO
- Replies: 66
- Views: 13621
Hello Robert, Just another confirmation - I saw your earlier thread about the 6.7X magnification you got when setting up the ITL200 following Thorlabs' diagrams, and ran a test this afternoon using this tube lens in both orientations with a 10X Mitty. I got 9.9X using it in both directions. This may...
- Thu Jul 12, 2018 5:06 am
- Forum: Equipment Discussions
- Topic: New controllers and setups from Ukraine
- Replies: 11
- Views: 4689
- Mon Jul 09, 2018 7:20 am
- Forum: Equipment Discussions
- Topic: A great price for a compact high CRI LED panel!
- Replies: 2
- Views: 773
A great price for a compact high CRI LED panel!
I just ordered a couple, but there were still six left ; )
https://www.ebay.com/itm/Cineo-Lighting ... 2381196389?
https://www.ebay.com/itm/Cineo-Lighting ... 2381196389?
- Fri Dec 29, 2017 8:26 am
- Forum: Equipment Discussions
- Topic: Inexpensive dark field adapter
- Replies: 8
- Views: 1742
Nice and effective! How do you illuminate the mirror?, maybe with a ring of light from the rear of the subject (what's called a Lieberkühn reflector)? Thanks Pau. I used a pair of Novoflex Macrolight Plus lights, with Vivitar 183 flashes. See here Nice picture and thanks for the idea! I like the bl...
- Thu Dec 28, 2017 12:48 pm
- Forum: Equipment Discussions
- Topic: Inexpensive dark field adapter
- Replies: 8
- Views: 1742
Inexpensive dark field adapter
A quick and easy “dark field” adapter made from a solar cigarette lighter, readily available on eBay for just a few dollars (see for example here ). I removed the metal coil, and cut a plastic vial to reach the position at which the end of the cigarette would rest in the coil (the focus of the parab...
- Wed Nov 02, 2016 6:18 am
- Forum: Photography Through the Microscope
- Topic: insects
- Replies: 23
- Views: 2709