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Petzval 1840
Joined: 26 Aug 2009
Posts: 103
Location: N.E. of Spain (Europe)
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 Posted: Mon Mar 15, 2010 6:03 pm Post subject: Photo taken with a vulgar magnifying glass. |
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Petzval 1840 wrote:
Hello:
This evening I have taken this photo with a current magnifying glass of 4 dipotries, that is equivalent to a lens of 250 mm.
Clearly there is no diaphragm and the photo is taken to full opening.
The capture has been taken without tripod and bearing the magnifying glass in the bellows with the hand. It is possible that it has brought in light between the magnifying glass and the bellows, diminishing the contrast.
I wait for the results of your experiments.
Bests Regards: David.
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DSLR: Pentax K 200 D |
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no-X
Joined: 19 Jul 2008
Posts: 2495
Location: Budejky, Czech Republic
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| Posted: Mon Mar 15, 2010 6:13 pm Post subject: |
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no-X wrote:
Nice. What speed does it have approximately? 
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(almost) complete list of Helios lenses |
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fish4570
Joined: 06 Jan 2010
Posts: 4514
Location: At the confluence of the Locust Fork of the Warrior River and Black Creek, Alabama
Expire: 2012-03-21
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| Posted: Mon Mar 15, 2010 7:24 pm Post subject: |
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fish4570 wrote:
har! keep going, david!
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Paul
I chase Light
http://blackcreekjournal.blogspot.com/ |
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Petzval 1840
Joined: 26 Aug 2009
Posts: 103
Location: N.E. of Spain (Europe)
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| Posted: Mon Mar 15, 2010 7:38 pm Post subject: |
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Petzval 1840 wrote:
Hello No-x and all the people:
The photo has been taken to 1/90 sec.
My friend Manolo has corrected the photo by means of P.S.
Bests Regards: David.
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DSLR: Pentax K 200 D |
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indianadinos
Joined: 06 Jul 2008
Posts: 1310
Location: Toulouse, France
Expire: 2011-12-05
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| Posted: Mon Mar 15, 2010 8:45 pm Post subject: |
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indianadinos wrote:
Which is the brand of your magnifying glass ?
Cheers
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Please visit my blogs Shooting with a Pentax K10D / FF Visions
Takumar: 24/3.5, 28/3.5, 35/2, 35/3.5, 50/1.4, 55/1.8, 85/1.8, 105/2.8, 120/2.8, 135/3.5, 150/4, 200/4
Pentax-K: M28/2.8, K28/3.5, M50/1.4, A50/1.7, M50/4 Macro, K85/1.8, K105/2.8, K135/2.5, M200/4, M70-150/4
Zeiss: Flektogon 20/2.8, 20/4, 35/2.4, 35/2.8, Tessar 50/2.8, Pancolar 50/1.8, Biotar 58/2, Sonnar 135/3.5, Sonnar 180/2.8
Meyer: Primagon 35/4.5, Domiplan 50/2.8, Oreston 50/1.8, Primoplan 58/1.9, Trioplan 100/2.8, Orestor 100/2.8, Orestor 135/2.8
Schacht/Steinheil: Travenar 90/2.8, Travenon 135/4.5, Quinar 135/2.8, Quinar 135/3.5
Russian: MIR 37B, Industar 50/3.5, Helios 44M & 44M-2, Jupiter 37A
P6: Flektogon 50/4, Biometar 80/2.8, Orestor 300/4
Nikkor: Nikkor-O 35/2, Micro 55/3.5, Nikkor-S 50/1.4, Nikkor-Q 135/2.8
Fuji: EBC 28/3.5, EBC 55/3.5 Macro, EBC 135/2.5
Misc Lenses: Kiron 105/2.8 Macro, Tamron SP90/2.5
... and a few other Vivitar, Tamron, Sigma and Soligor lenses ...
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poilu
Joined: 26 Aug 2007
Posts: 10471
Location: Greece
Expire: 2019-08-29
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| Posted: Mon Mar 15, 2010 8:47 pm Post subject: |
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poilu wrote:
great results, I have to try that!
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luisalegria
Joined: 07 Mar 2008
Posts: 6627
Location: San Francisco, USA
Expire: 2018-01-18
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| Posted: Tue Mar 16, 2010 2:44 am Post subject: |
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luisalegria wrote:
I agree, that looks like an excellent magnifying glass !
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I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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hk300
Joined: 30 Oct 2008
Posts: 1041
Location: Hong Kong
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| Posted: Tue Mar 16, 2010 3:00 am Post subject: |
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hk300 wrote:
doesn't look too bad... in fact, after PS ... it even looks very good!
Can you post a pic of the setup
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No longer member , please don't try to contact to him |
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