NikonGear'23
Gear Talk => Lens Talk => Topic started by: Dr Klaus Schmitt on July 09, 2017, 22:00:05
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(http://m8.i.pbase.com/o10/08/747708/1/165792998.zNBmFTlm.Rudbeckia2017VISUVBVP7080338a_c.jpg)
Human Vision - UV - simulated Bee Vision
Great to test a newly acquired (backup) lens...
Extremely sharp lens, and a great performer it is.
Quite a pleasure to use.
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Nice examples of what the UV-Nikkor can deliver. It really belongs to the greatest of all Nikkors. For redundancy and backup reasons, I always bring two of them.
What camera did you use it on?
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The simulated Bee Vision is very much to my liking :)
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Nice examples of what the UV-Nikkor can deliver. It really belongs to the greatest of all Nikkors. For redundancy and backup reasons, I always bring two of them.
What camera did you use it on?
That was on a modified Olympus mirrorless one. Unfortunately 2 stops less sensitive than my Lumix, so not that happy
The simulated Bee Vision is very much to my liking :)
Thanks Jakov! I like that, too!!
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Thanks for the info, Klaus.
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Thanks for the info, Klaus.
Most welcome! I bought a used Coastal Optics f4 / 105mm, too but I prefer the UV-Nikkor
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The simulated bee vision is really nice, it really attracts attention for humans as well ;)
Did you get the mount to work properly?
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The simulated bee vision is really nice, it really attracts attention for humans as well ;)
Did you get the mount to work properly?
THX! Ring is on its way from Finland, hope to have it soon here...
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Most welcome! I bought a used Coastal Optics f4 / 105mm, too but I prefer the UV-Nikkor
Just in case one is interested in the (unscientific!) comparison UV-Nikkor 105 vs Coastal Optics 105: http://photographyoftheinvisibleworld.blogspot.de/2017/07/uv-nikkor-105mm-vs-coastal-optical.html (http://photographyoftheinvisibleworld.blogspot.de/2017/07/uv-nikkor-105mm-vs-coastal-optical.html)
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Good to learn there are options apart from the old UV-Nikkor such as UV 105 Rayfact, and now the Coastal 105.
Unfortunately, quality and price go hand in hand.
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Good to learn there are options apart from the old UV-Nikkor such as UV 105 Rayfact, and now the Coastal 105.
Unfortunately, quality and price go hand in hand.
Price: $5,350 list price and than that??? Even a sloppy Nikon mount???
https://www.jenoptik-inc.com/product/uv-vis-105mm-slr-uv-vis-ir-60mm-apo-macro-lenses/ (https://www.jenoptik-inc.com/product/uv-vis-105mm-slr-uv-vis-ir-60mm-apo-macro-lenses/)
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Good to learn there are options apart from the old UV-Nikkor such as UV 105 Rayfact, and now the Coastal 105.
Unfortunately, quality and price go hand in hand.
Guess I found the culprit, I measured 2.1mm for the original Nikon mounting ring and another well fitting one with Nikon AI mount, BUT 2.2mm for the one of the wobbly COASTAL lens. It is that groove that runs around the mound where those lugs are, with a little overlap. THAT easily explains why it wobbles! 0.1mm is quite a bit. Guess this is why some people with similar problems widened the adapter lugs for a tighter fit!!
(http://forum.mflenses.com/userpix/20177/455_Nikon_mount_issue_c_1.jpg)
Tested my Novoflex and all other adapters, there is indeed not enough tension for those built in springs to produce enough pressure for a tight fit to 2.2mm. The tighter original mount however with 2.1mm fits perfectly.
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That measurement is of course extremely important however it is also very difficult to measure.
A standard caliper will often touch the outer edge of the mount with the rear of the jaw and the caliber will not be parallel to the axis, the resulting measurement will bee off,,,
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awesome work :o :o :o
very interesting!!! ::)
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That measurement is of course extremely important however it is also very difficult to measure.
A standard caliper will often touch the outer edge of the mount with the rear of the jaw and the caliber will not be parallel to the axis, the resulting measurement will bee off,,,
yep, indeed Erik, but enough to have found the culprit...
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Guess I found the culprit, I measured 2.1mm for the original Nikon mounting ring and another well fitting one with Nikon AI mount, BUT 2.2mm for the one of the wobbly COASTAL lens. It is that groove that runs around the mound where those lugs are, with a little overlap. THAT easily explains why it wobbles! 0.1mm is quite a bit. Guess this is why some people with similar problems widened the adapter lugs for a tighter fit!!
(http://forum.mflenses.com/userpix/20177/455_Nikon_mount_issue_c_1.jpg)
Tested my Novoflex and all other adapters, there is indeed not enough tension for those built in springs to produce enough pressure for a tight fit to 2.2mm. The tighter original mount however with 2.1mm fits perfectly.
I got me a NOVOFLEX adapter (dedicated to that Coastal Optics lens) and pinched the internal springs wider, now it shows a nice tight fit - problem solved!
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Here now a Rudbeckia hirta multispectral (Human vision, UV, simulated butterfly and bee vision)
Shot using said UV-Nikkor 105mm quartz-fluorite lens at f11, using a modified Xenon flash and proprietary filters.
(http://www.pbase.com/kds315/image/165960349/original.jpg)
[these are just JPG pre-production studio shots for calibration I need for publications, museum exhibits etc.;
production files are then developed from RAW for 300dpi print resolution]