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ForenSeil
Joined: 15 Apr 2011 Posts: 2726 Location: Kiel, Germany.
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Posted: Thu Jan 17, 2013 10:33 pm Post subject: Found a new cheap lens for reflected UV-Photography |
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ForenSeil wrote:
Today I tried nearly all my lenses for UV-transmission with 365nm LEDs, filtered through Shott UG1
Rodagon 50/2.8, Rodagon 135/5.6, some Russians like Jupiter 8M, Helios 44-2, Helios-103,... and many more.
All showed slight to strong haze in contact with UV-light. Some even strong fluorescence.
The only lens I found to be perfectly clear in UV-light was the Rodenstock Trinar 75/4.5
Straight JPEG modified NEX-5N
Light 365nm LED, filtered through Shott UG1
Crop:
No flare, no haze, very usable contrast and sharpness,... the lens seems to work very nice for UV-light. At least for 365nm. Unfortunately I have no Baader-U etc. filter to test it outdoors and no flowers to test it on something more interesting . _________________ I'm not a collector, I'm a tester
My camera: Sony A7+Zeiss Sonnar 55/1.8
Current favourite lenses (I have many more):
A few macro-Tominons, Samyang 12/2.8, Noritsu 50.7/9.5, Rodagon 105/5.6 on bellows, Samyang 135/2, Nikon ED 180/2.8, Leitz Elmar-R 250/4, Celestron C8 2000mm F10
Most wanted: Samyang 24/1.4, Samyang 35/1.4, Nikon 200/2 ED
My Blog: http://picturechemistry.own-blog.com/
(German language) |
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Minolfan
Joined: 30 Dec 2008 Posts: 3439 Location: Netherlands
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Posted: Fri Jan 18, 2013 12:13 am Post subject: |
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Minolfan wrote:
Looks very interesting indeed.
A humble triplet enlarger lens, isn't it? |
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jjphoto
Joined: 17 Mar 2009 Posts: 414
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Posted: Fri Jan 18, 2013 12:25 am Post subject: |
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jjphoto wrote:
Maybe it's the case that the fewer elements the less UV is attenuated.
Anyone try UV pinhole pics? |
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kds315*
Joined: 12 Mar 2008 Posts: 16652 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Fri Jan 18, 2013 2:12 am Post subject: |
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kds315* wrote:
You could have save quite some time by simply reading my BLOG uvir.eu as I have tested hundreds of lenses and the ones that do work, I have written about (right side link list). There is even a SEARCH function...
That Trinar I know but did not find it sharp enough for my work.
Pinhole I tried, also shown on my BLOG with examples. Only good for large format, not digital UV. _________________ Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
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Alex H
Joined: 25 Dec 2011 Posts: 344
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Posted: Fri Jan 18, 2013 6:51 am Post subject: |
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Alex H wrote:
It may be sharp with narrow-band LED but how will it perform with the "broad-band" Baader U2 and how deep in UV does it transmit? |
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ForenSeil
Joined: 15 Apr 2011 Posts: 2726 Location: Kiel, Germany.
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Posted: Sat Jan 19, 2013 7:14 pm Post subject: |
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ForenSeil wrote:
Minolfan wrote: |
Looks very interesting indeed.
A humble triplet enlarger lens, isn't it? |
Yup, an uncoated very basic triplet enlarger lens. Very cheap.
Modern Rodagons also have usable UV-transmission (lower than Trinar though) but at least my ones also show very slight haze/fluorescence etc.
kds315* wrote: |
You could have save quite some time by simply reading my BLOG uvir.eu as I have tested hundreds of lenses and the ones that do work, I have written about (right side link list). There is even a SEARCH function...
That Trinar I know but did not find it sharp enough for my work.
Pinhole I tried, also shown on my BLOG with examples. Only good for large format, not digital UV. |
Your blog is very nice but like most blogs also a little unübersichtlich
I wasn't able to find this Trinar in your blog bye the way
Alex H wrote: |
It may be sharp with narrow-band LED but how will it perform with the "broad-band" Baader U2 and how deep in UV does it transmit? |
I don't have such a filter at the moment
If anyone knows a cheap offer, let me know! _________________ I'm not a collector, I'm a tester
My camera: Sony A7+Zeiss Sonnar 55/1.8
Current favourite lenses (I have many more):
A few macro-Tominons, Samyang 12/2.8, Noritsu 50.7/9.5, Rodagon 105/5.6 on bellows, Samyang 135/2, Nikon ED 180/2.8, Leitz Elmar-R 250/4, Celestron C8 2000mm F10
Most wanted: Samyang 24/1.4, Samyang 35/1.4, Nikon 200/2 ED
My Blog: http://picturechemistry.own-blog.com/
(German language)
Last edited by ForenSeil on Wed Nov 13, 2013 3:45 pm; edited 3 times in total |
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ForenSeil
Joined: 15 Apr 2011 Posts: 2726 Location: Kiel, Germany.
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Posted: Mon Feb 04, 2013 2:08 am Post subject: |
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ForenSeil wrote:
VIS (cheap chinese UV-IR-Cut filter)
Schott UG1 + small UV torch light
crop:
A B/W conversion
Lens is not exactly as sharp as El-Nikkors or dedicated UV lenses but produces a perfectly clear picture without any flare, haze etc.. while having a usable transmission.
I think it should also work outdoors with Baader U or similar as there's only a tiny focus shift between VIS, UV and IR.
Need some more interesting subjects _________________ I'm not a collector, I'm a tester
My camera: Sony A7+Zeiss Sonnar 55/1.8
Current favourite lenses (I have many more):
A few macro-Tominons, Samyang 12/2.8, Noritsu 50.7/9.5, Rodagon 105/5.6 on bellows, Samyang 135/2, Nikon ED 180/2.8, Leitz Elmar-R 250/4, Celestron C8 2000mm F10
Most wanted: Samyang 24/1.4, Samyang 35/1.4, Nikon 200/2 ED
My Blog: http://picturechemistry.own-blog.com/
(German language)
Last edited by ForenSeil on Mon Feb 04, 2013 6:36 am; edited 2 times in total |
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kds315*
Joined: 12 Mar 2008 Posts: 16652 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Mon Feb 04, 2013 5:50 am Post subject: |
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kds315* wrote:
That bw converted last UV image look pretty good to me! _________________ Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
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mo
Joined: 27 Aug 2009 Posts: 8979 Location: Australia
Expire: 2016-07-30
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Posted: Mon Feb 04, 2013 8:41 am Post subject: |
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mo wrote:
I like the B&W version,and the crisp whiteness of the first.
Can I ask ForenSeil, what made you want to explore the UV world? _________________ Moira, Moderator
Fuji XE-1,Pentax K-01,Panasonic G1,Panasonic G5,Pentax MX
Ricoh Singlex TLS,KR-5,KR-5Super,XR-10
Lenses
Auto Rikenon's 55/1.4, 1.8, 2.8... 50/1.7 Takumar 2/58 Preset Takumar 2.8/105 Auto Takumar 2.2/55, 3.5/35 Super Takumar 1.8/55...Macro Takumar F4/50... CZJ Biotar ALU M42 2/58 CZJ Tessar ALU M42 2.8/50
CZJ DDR Flektogon Zebra M42 2.8/35 CZJ Pancolar M42 2/50 CZJ Pancolar Exakta 2/50
Auto Mamiya/Sekor 1.8/55 ...Auto Mamiya/Sekor 2/50 Auto Mamiya/Sekor 2.8/50 Auto Mamiya/Sekor 200/3.5 Tamron SP500/8 Tamron SP350/5.6 Tamron SP90/2.5
Primoplan 1.9/58 Primagon 4.5/35 Telemegor 5.5/150 Angenieux 3.5/28 Angenieux 3,5/135 Y 2
Canon FL 58/1.2,Canon FL85/1.8,Canon FL 100/3.5,Canon SSC 2.8/100 ,Konica AR 100/2.8, Nikkor P 105/2.5
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ForenSeil
Joined: 15 Apr 2011 Posts: 2726 Location: Kiel, Germany.
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Posted: Mon Feb 04, 2013 9:22 am Post subject: |
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ForenSeil wrote:
mo wrote: |
I like the B&W version,and the crisp whiteness of the first.
Can I ask ForenSeil, what made you want to explore the UV world? |
Thx,
No real clue, but for some reason I'm a natural science geek since I'm a very young boy. I destilled alcohol with DIY instruments with 6 years and made black powder from fertilizer when I was 8 years old all without any parental help etc. and experimenting/playing around never stopped with all kinds of experiments which can be done at home. Playing with UV light is somehow a "must-try" for me, the kid in me wants to see it _________________ I'm not a collector, I'm a tester
My camera: Sony A7+Zeiss Sonnar 55/1.8
Current favourite lenses (I have many more):
A few macro-Tominons, Samyang 12/2.8, Noritsu 50.7/9.5, Rodagon 105/5.6 on bellows, Samyang 135/2, Nikon ED 180/2.8, Leitz Elmar-R 250/4, Celestron C8 2000mm F10
Most wanted: Samyang 24/1.4, Samyang 35/1.4, Nikon 200/2 ED
My Blog: http://picturechemistry.own-blog.com/
(German language) |
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JCDowdy
Joined: 02 Aug 2013 Posts: 10 Location: Memphis, Tennessee, USA
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Posted: Thu Aug 08, 2013 6:31 am Post subject: |
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JCDowdy wrote:
Now there is a word prounounced more clearly after distilling.... _________________ John Dowdy |
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wuxiekeji
Joined: 15 Aug 2012 Posts: 213
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Posted: Thu Aug 08, 2013 7:13 am Post subject: Re: Found a new cheap lens for reflected UV-Photography |
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wuxiekeji wrote:
A lot of materials absorb UV -- more than you think. Most polycarbonates also do a fantastic job at killing UV. With all the wacky materials they use in making lenses and coatings, it's not surprising that some UV gets absorbed, scattered, or excites fluorescence leading to more scattered light.
I would guess (haven't tested) that likely most old, cheap uncoated lenses made of fused silica and nothing else might all do reasonably well for UV. _________________ Canon EOS 6D | Canon EOS 60D | Canon EOS-M | Voigtlander Nokton 1.4/35 | Zeiss Distagon C-Y 4/18 | Zeiss Distagon ZF 2/28 | Samyang 1.4/35 | Zeiss Planar C-Y 1.4/50 | Zeiss Planar C-Y 1.4/85 | Zeiss Makro-Planar C-Y 2.8/100 | Zeiss Sonnar C-Y 2.8/135 | Nikkor ED Ai-S 2.8/180 | Canon FD SSC Fluorite 2.8/300 | Tair-3S 4.5/300 |
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kds315*
Joined: 12 Mar 2008 Posts: 16652 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Thu Aug 08, 2013 4:54 pm Post subject: Re: Found a new cheap lens for reflected UV-Photography |
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kds315* wrote:
wuxiekeji wrote: |
I would guess (haven't tested) that likely most old, cheap uncoated lenses made of fused silica and nothing else might all do reasonably well for UV. |
Unfortunately not, as I have tested >100 lenses and barely a handful do transmit UV acceptably well. _________________ Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
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JCDowdy
Joined: 02 Aug 2013 Posts: 10 Location: Memphis, Tennessee, USA
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Posted: Fri Aug 09, 2013 5:06 am Post subject: Re: Found a new cheap lens for reflected UV-Photography |
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JCDowdy wrote:
kds315* wrote: |
Unfortunately not, as I have tested >100 lenses and barely a handful do transmit UV acceptably well. |
Acceptable is of course a relative term, sir.
Few among us enjoy even a single single specimen of your All-Star line up of fine UV lenses.
"Denken Sie immer daran, egal wohin Sie gehen - da bist du ja." Buckaroo Banzai _________________ John Dowdy |
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kds315*
Joined: 12 Mar 2008 Posts: 16652 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Fri Aug 09, 2013 5:31 am Post subject: |
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kds315* wrote:
That wasn't the criteria, I was referring to lenses that reach to about 320-340nm and having a transmission at 365nm of at least >50-60% _________________ Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
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BrianS
Joined: 03 Aug 2013 Posts: 92
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Posted: Fri Aug 09, 2013 1:25 pm Post subject: |
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BrianS wrote:
People might look into old spectrum analyzers, those being surplused. Ones with optics in and that go down to the UV are good candidates.
I found an old Quartz lens, sent it to Klaus years ago. The salt lenses had deteriorated. One of the optical engineers at the lab told me that BK7 was good for near-UV.
http://www.schott.com/advanced_optics/us/abbe_datasheets/schott_datasheet_n-bk7.pdf |
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sammo
Joined: 04 Jan 2012 Posts: 223 Location: CH and SI
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Posted: Fri Aug 09, 2013 9:14 pm Post subject: |
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sammo wrote:
Spectrometers more often use mirrors instead of lenses to avoid CA. |
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BrianS
Joined: 03 Aug 2013 Posts: 92
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Posted: Fri Aug 09, 2013 11:02 pm Post subject: |
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BrianS wrote:
Some used optics. I'll try looking into which ones used optics. Unfortunately, both of the senior optical engineers that knew the old equipment have retired. Was nice to get immediate answers on everything from UV to thermal IR. |
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