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Katastrofo
Joined: 26 Feb 2007
Posts: 10405
Location: USA
Expire: 2013-11-19
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 Posted: Wed Sep 10, 2008 11:59 am Post subject: PTLens |
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Katastrofo wrote:
I just tried this software, straightening the barrel distortion in this Flek 4/20
pic:
plug-in for photoshop:
http://epaperpress.com/ptlens/ |
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lulalake
Joined: 22 Apr 2007
Posts: 1191
Location: Near Austin Texas
Expire: 2011-11-18
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| Posted: Wed Sep 10, 2008 1:33 pm Post subject: |
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lulalake wrote:
Yes! I use it frequently, it's cheap and works beautifully.
Jules |
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LucisPictor
Joined: 26 Feb 2007
Posts: 17633
Location: Oberhessen, Germany / Maidstone ('95-'96)
Expire: 2013-12-03
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| Posted: Wed Sep 10, 2008 2:21 pm Post subject: |
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LucisPictor wrote:
It works indeed. And it improves the shots taken even with a good lens like the Flek.
_________________
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Things ON SALE
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http://www.retrocamera.de
Last edited by LucisPictor on Wed Sep 10, 2008 3:14 pm; edited 1 time in total |
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Katastrofo
Joined: 26 Feb 2007
Posts: 10405
Location: USA
Expire: 2013-11-19
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| Posted: Wed Sep 10, 2008 3:13 pm Post subject: |
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Katastrofo wrote:
Thanks, Jules and Carsten, I'll be buying this one.
Bill |
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lulalake
Joined: 22 Apr 2007
Posts: 1191
Location: Near Austin Texas
Expire: 2011-11-18
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| Posted: Wed Sep 10, 2008 4:58 pm Post subject: |
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lulalake wrote:
| Katastrofo wrote: |
Thanks, Jules and Carsten, I'll be buying this one.
Bill |
It's a good investment, plus the guy will do custom lens fixes. You send in a test pic from a specific lens and he will write the adjustment for you.
Very cool
Jules |
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Katastrofo
Joined: 26 Feb 2007
Posts: 10405
Location: USA
Expire: 2013-11-19
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| Posted: Wed Sep 10, 2008 8:22 pm Post subject: |
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Katastrofo wrote:
Bibble does that too, but this setup is much handier to use. |
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patrickh
Joined: 23 Aug 2007
Posts: 8551
Location: Oregon
Expire: 2011-11-18
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| Posted: Wed Sep 10, 2008 11:29 pm Post subject: |
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patrickh wrote:
They both based on Dr Deutsch's free software - kekus has been developing it for several years now. He's a good guy
patrickh
_________________
DSLR: Nikon D300 Nikon D200 Nex 5N
MF Zooms: Kiron 28-85/3.5, 28-105/3.2, 75-150/3.5, Nikkor 50-135/3.5 AIS // MF Primes: Nikkor 20/4 AI, 24/2 AI, 28/2 AI, 28/2.8 AIS, 28/3.5 AI, 35/1.4 AIS, 35/2 AIS, 35/2.8 PC, 45/2.8 P, 50/1.4 AIS, 50/1.8 AIS, 50/2 AI, 55/2.8 AIS micro, 55/3.5 AI micro, 85/2 AI, 100/2,8 E, 105/1,8 AIS, 105/2,5 AIS, 135/2 AIS, 135/2.8 AIS, 200/4 AI, 200/4 AIS micro, 300/4.5 AI, 300/4.5 AI ED, Arsat 50/1.4, Kiron 28/2, Vivitar 28/2.5, Panagor 135/2.8, Tamron 28/2.5, Tamron 90/2.5 macro, Vivitar 90/2.5 macro (Tokina) Voigtlander 90/3.5 Vivitar 105/2.5 macro (Kiron) Kaleinar 100/2.8 AI Tamron 135/2.5, Vivitar 135/2.8CF, 200/3.5, Tokina 400/5,6
M42: Vivitar 28/2.5, Tamron 28/2.5, Formula5 28/2.8, Mamiya 28/2.8, Pentacon 29/2.8, Flektogon 35/2.4, Flektogon 35/2.8, Takumar 35/3.5, Curtagon 35/4, Takumar 50/1.4, Volna-6 50/2.8 macro, Mamiya 50/1.4, CZJ Pancolar 50/1,8, Oreston 50/1.8, Takumar 50/2, Industar 50/3.5, Sears 55/1.4, Helios 58/2, Jupiter 85/2, Helios 85/1.5, Takumar 105/2.8, Steinheil macro 105/4.5, Tamron 135/2.5, Jupiter 135/4, CZ 135/4, Steinheil Culminar 135/4,5, Jupiter 135/3.5, Takumar 135/3.5, Tair 135/2.8, Pentacon 135/2.8, CZ 135/2.8, Taika 135/3.5, Takumar 150/4, Jupiter 200/4, Takumar 200/4
Exakta: Topcon 100/2.8(M42), 35/2.8, 58/1.8, 135/2.8, 135/2.8 (M42), Kyoei Acall 135/3.5
C/Y: Yashica 28/2.8, 50/1.7, 135/2.8, Zeiss Planar 50/1.4, Distagon 25/2.8
Hexanon: 28/3.5, 35/2.8, 40/1.8, 50/1.7, 52/1.8, 135/3.2, 135/3.5, 35-70/3.5, 200/3.5
P6 : Mir 38 65/3.5, Biometar 80/2.8, Kaleinar 150/2.8, Sonnar 180/2.8
Minolta SR: 28/2.8, 28/3.5, 35/2.8, 45/2, 50/2, 58/1.4, 50/1.7, 135/2.8, 200/3.5
RF: Industar 53/2.8, Jupiter 8 50/2
Enlarg: Rodagon 50/5,6, 80/5,6, 105/5.6, Vario 44-52/4, 150/5.6 180/5.6 El Nikkor 50/2,8,63/2.8,75/4, 80/5,6, 105/5.6, 135/5.6 Schneider 60/5.6, 80/5.6, 80/4S,100/5.6S,105/5.6,135/5.6, 135/5.6S, 150/5.6S, Leica 95/4 |
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Laurence
Joined: 26 Mar 2007
Posts: 4809
Location: Western Washington State
Expire: 2016-06-19
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| Posted: Wed Sep 10, 2008 11:35 pm Post subject: |
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Laurence wrote:
An extremely fine shot on its own!
But...I must have bloodshot eyes, I can't see much difference...would you point out the differences to my tired old eyes and brain? 
_________________
Assent, and you are sane;
Demur,—you ’re straightway dangerous,
And handled with a chain.
Emily Dickinson
Cameras and Lenses in Use:
Yashica Mat 124 w/ Yashinon 80/3.5,
CV Apo-Lanthar 90/3.5SL, (Thank you Klaus),
Pentax 645,
Flek 50,
Pentax-A 150
Pentax-A 120 Macro
Voigtlander Vitomatic I w/Color Skopar 50/2.8
Konica TC and zoom lenses (thanks Carsten)
Contax AX
Yashica ML 50/2
Yashica ML 35/2.8
Carl Zeiss Contax 50/1.4
Tamron Adaptall SP 17/3.5
Tamron Adaptall 28/2.5
Tamron Adaptall SP 300/2.8 LD (IF)
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maddog10
Joined: 08 Apr 2008
Posts: 1072
Location: Maryland, USA
Expire: 2015-02-12
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| Posted: Thu Sep 11, 2008 12:06 am Post subject: |
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maddog10 wrote:
I didn't see it either Larry.
I did go to the PTlens website and look at the demo photos, looks interesting.
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Michael Hill |
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Katastrofo
Joined: 26 Feb 2007
Posts: 10405
Location: USA
Expire: 2013-11-19
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| Posted: Thu Sep 11, 2008 2:42 am Post subject: |
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Katastrofo wrote:
Larry, it was slight, just a -5 brought the buildings to vertical. I like that you
can pop up a grid to check your work, and a slider going to the right makes
more squares in the grid, very useful.
here's another two:
original:
ptl'd, here again, very slight -5 or -6 setting
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Thu Sep 11, 2008 5:20 am Post subject: |
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Orio wrote:
 The Flek 4/20 has no barrel distortion Hrmpf!
_________________
Orio, Administrator
T*
NE CEDE MALIS AUDENTIOR ITO
Ferrania film is reborn! http://www.filmferrania.it/
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patrickh
Joined: 23 Aug 2007
Posts: 8551
Location: Oregon
Expire: 2011-11-18
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| Posted: Thu Sep 11, 2008 5:34 am Post subject: |
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patrickh wrote:
Actually I think Bill could have been slightly more aggressive with his adjustments - and some of it is parallax not barrel. PTLens can make a certain amount of adjustment to compensate for the lack of shift
patrickh
_________________
DSLR: Nikon D300 Nikon D200 Nex 5N
MF Zooms: Kiron 28-85/3.5, 28-105/3.2, 75-150/3.5, Nikkor 50-135/3.5 AIS // MF Primes: Nikkor 20/4 AI, 24/2 AI, 28/2 AI, 28/2.8 AIS, 28/3.5 AI, 35/1.4 AIS, 35/2 AIS, 35/2.8 PC, 45/2.8 P, 50/1.4 AIS, 50/1.8 AIS, 50/2 AI, 55/2.8 AIS micro, 55/3.5 AI micro, 85/2 AI, 100/2,8 E, 105/1,8 AIS, 105/2,5 AIS, 135/2 AIS, 135/2.8 AIS, 200/4 AI, 200/4 AIS micro, 300/4.5 AI, 300/4.5 AI ED, Arsat 50/1.4, Kiron 28/2, Vivitar 28/2.5, Panagor 135/2.8, Tamron 28/2.5, Tamron 90/2.5 macro, Vivitar 90/2.5 macro (Tokina) Voigtlander 90/3.5 Vivitar 105/2.5 macro (Kiron) Kaleinar 100/2.8 AI Tamron 135/2.5, Vivitar 135/2.8CF, 200/3.5, Tokina 400/5,6
M42: Vivitar 28/2.5, Tamron 28/2.5, Formula5 28/2.8, Mamiya 28/2.8, Pentacon 29/2.8, Flektogon 35/2.4, Flektogon 35/2.8, Takumar 35/3.5, Curtagon 35/4, Takumar 50/1.4, Volna-6 50/2.8 macro, Mamiya 50/1.4, CZJ Pancolar 50/1,8, Oreston 50/1.8, Takumar 50/2, Industar 50/3.5, Sears 55/1.4, Helios 58/2, Jupiter 85/2, Helios 85/1.5, Takumar 105/2.8, Steinheil macro 105/4.5, Tamron 135/2.5, Jupiter 135/4, CZ 135/4, Steinheil Culminar 135/4,5, Jupiter 135/3.5, Takumar 135/3.5, Tair 135/2.8, Pentacon 135/2.8, CZ 135/2.8, Taika 135/3.5, Takumar 150/4, Jupiter 200/4, Takumar 200/4
Exakta: Topcon 100/2.8(M42), 35/2.8, 58/1.8, 135/2.8, 135/2.8 (M42), Kyoei Acall 135/3.5
C/Y: Yashica 28/2.8, 50/1.7, 135/2.8, Zeiss Planar 50/1.4, Distagon 25/2.8
Hexanon: 28/3.5, 35/2.8, 40/1.8, 50/1.7, 52/1.8, 135/3.2, 135/3.5, 35-70/3.5, 200/3.5
P6 : Mir 38 65/3.5, Biometar 80/2.8, Kaleinar 150/2.8, Sonnar 180/2.8
Minolta SR: 28/2.8, 28/3.5, 35/2.8, 45/2, 50/2, 58/1.4, 50/1.7, 135/2.8, 200/3.5
RF: Industar 53/2.8, Jupiter 8 50/2
Enlarg: Rodagon 50/5,6, 80/5,6, 105/5.6, Vario 44-52/4, 150/5.6 180/5.6 El Nikkor 50/2,8,63/2.8,75/4, 80/5,6, 105/5.6, 135/5.6 Schneider 60/5.6, 80/5.6, 80/4S,100/5.6S,105/5.6,135/5.6, 135/5.6S, 150/5.6S, Leica 95/4 |
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Katastrofo
Joined: 26 Feb 2007
Posts: 10405
Location: USA
Expire: 2013-11-19
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| Posted: Thu Sep 11, 2008 2:08 pm Post subject: |
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Katastrofo wrote:
| Orio wrote: |
| The Flek 4/20 has no barrel distortion Hrmpf! |
On another forum in a land faraway, the comment was made that the
buildings were leaning outward from center. Sorry, and yes, opposite
barrel distortion.  |
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Katastrofo
Joined: 26 Feb 2007
Posts: 10405
Location: USA
Expire: 2013-11-19
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| Posted: Thu Sep 11, 2008 2:10 pm Post subject: |
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Katastrofo wrote:
| patrickh wrote: |
Actually I think Bill could have been slightly more aggressive with his adjustments - and some of it is parallax not barrel. PTLens can make a certain amount of adjustment to compensate for the lack of shift
patrickh |
Patrick, thanks, these were my first attempts using the trial version, and
have bought it, now. I'll see if I can improve on these first attempts.
Bill |
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Thu Sep 11, 2008 3:01 pm Post subject: |
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Orio wrote:
| Katastrofo wrote: |
On another forum in a land faraway, the comment was made that the
buildings were leaning outward from center. Sorry, and yes, opposite
barrel distortion. |
Opposite barrel distortion is really called pincushion distortion - but I never saw a wide angle lens displaying pincushion distortion in my lifetime.
If the other forum comment refers to the first photo in your original message, that is not barrel nor pincushion, but simply a problem of the camera's horizontal axis not being perfectly parallel to the horizon line: when you bend camera down, vertical lines seem to rise from the centre to the top corners; when you bend it down, the opposite occurs. In super wide angle lenses, this optical effect becomes particularly visible, but it's not related to the actual lens used.
_________________
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T*
NE CEDE MALIS AUDENTIOR ITO
Ferrania film is reborn! http://www.filmferrania.it/
Support the Ornano film chemicals company and help them survive!
http://forum.mflenses.com/ornano-chemical-products-t55525.html |
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Katastrofo
Joined: 26 Feb 2007
Posts: 10405
Location: USA
Expire: 2013-11-19
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| Posted: Thu Sep 11, 2008 3:25 pm Post subject: |
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Katastrofo wrote:
Thanks, Orio, shooting with a 20 is new territory for me, and should have
known it was my poor technique, not the lens.  |
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Thu Sep 11, 2008 4:59 pm Post subject: |
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Orio wrote:
| Katastrofo wrote: |
Thanks, Orio, shooting with a 20 is new territory for me, and should have
known it was my poor technique, not the lens. |
It's not poor technique 
First it's very easy to miss it when photographing with a superwide without a tripod.
Also, it's not mandatory to always keep the camera in line, in my opinion. Of course if your goal is to shoot a building or anything much geometrical from a frontal perspective, it's a must.
But especially if you are in a oblique position, and if there are other things like humans, bending camera up or down can add some dynamics to what would otherwise be too static pictures.
More than one time I tried to correct such photos and noticed that the correction sterilyzed them, so I got back to the original slanted image.
_________________
Orio, Administrator
T*
NE CEDE MALIS AUDENTIOR ITO
Ferrania film is reborn! http://www.filmferrania.it/
Support the Ornano film chemicals company and help them survive!
http://forum.mflenses.com/ornano-chemical-products-t55525.html |
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patrickh
Joined: 23 Aug 2007
Posts: 8551
Location: Oregon
Expire: 2011-11-18
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| Posted: Thu Sep 11, 2008 8:46 pm Post subject: |
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patrickh wrote:
It is also why the pros will always use a shift lens (or camera) when doing architectural work.
Bill
Orio is right and it takes a load of practice (which I personally have not done) to get it right.
patrickh
_________________
DSLR: Nikon D300 Nikon D200 Nex 5N
MF Zooms: Kiron 28-85/3.5, 28-105/3.2, 75-150/3.5, Nikkor 50-135/3.5 AIS // MF Primes: Nikkor 20/4 AI, 24/2 AI, 28/2 AI, 28/2.8 AIS, 28/3.5 AI, 35/1.4 AIS, 35/2 AIS, 35/2.8 PC, 45/2.8 P, 50/1.4 AIS, 50/1.8 AIS, 50/2 AI, 55/2.8 AIS micro, 55/3.5 AI micro, 85/2 AI, 100/2,8 E, 105/1,8 AIS, 105/2,5 AIS, 135/2 AIS, 135/2.8 AIS, 200/4 AI, 200/4 AIS micro, 300/4.5 AI, 300/4.5 AI ED, Arsat 50/1.4, Kiron 28/2, Vivitar 28/2.5, Panagor 135/2.8, Tamron 28/2.5, Tamron 90/2.5 macro, Vivitar 90/2.5 macro (Tokina) Voigtlander 90/3.5 Vivitar 105/2.5 macro (Kiron) Kaleinar 100/2.8 AI Tamron 135/2.5, Vivitar 135/2.8CF, 200/3.5, Tokina 400/5,6
M42: Vivitar 28/2.5, Tamron 28/2.5, Formula5 28/2.8, Mamiya 28/2.8, Pentacon 29/2.8, Flektogon 35/2.4, Flektogon 35/2.8, Takumar 35/3.5, Curtagon 35/4, Takumar 50/1.4, Volna-6 50/2.8 macro, Mamiya 50/1.4, CZJ Pancolar 50/1,8, Oreston 50/1.8, Takumar 50/2, Industar 50/3.5, Sears 55/1.4, Helios 58/2, Jupiter 85/2, Helios 85/1.5, Takumar 105/2.8, Steinheil macro 105/4.5, Tamron 135/2.5, Jupiter 135/4, CZ 135/4, Steinheil Culminar 135/4,5, Jupiter 135/3.5, Takumar 135/3.5, Tair 135/2.8, Pentacon 135/2.8, CZ 135/2.8, Taika 135/3.5, Takumar 150/4, Jupiter 200/4, Takumar 200/4
Exakta: Topcon 100/2.8(M42), 35/2.8, 58/1.8, 135/2.8, 135/2.8 (M42), Kyoei Acall 135/3.5
C/Y: Yashica 28/2.8, 50/1.7, 135/2.8, Zeiss Planar 50/1.4, Distagon 25/2.8
Hexanon: 28/3.5, 35/2.8, 40/1.8, 50/1.7, 52/1.8, 135/3.2, 135/3.5, 35-70/3.5, 200/3.5
P6 : Mir 38 65/3.5, Biometar 80/2.8, Kaleinar 150/2.8, Sonnar 180/2.8
Minolta SR: 28/2.8, 28/3.5, 35/2.8, 45/2, 50/2, 58/1.4, 50/1.7, 135/2.8, 200/3.5
RF: Industar 53/2.8, Jupiter 8 50/2
Enlarg: Rodagon 50/5,6, 80/5,6, 105/5.6, Vario 44-52/4, 150/5.6 180/5.6 El Nikkor 50/2,8,63/2.8,75/4, 80/5,6, 105/5.6, 135/5.6 Schneider 60/5.6, 80/5.6, 80/4S,100/5.6S,105/5.6,135/5.6, 135/5.6S, 150/5.6S, Leica 95/4 |
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Katastrofo
Joined: 26 Feb 2007
Posts: 10405
Location: USA
Expire: 2013-11-19
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| Posted: Fri Sep 12, 2008 2:06 am Post subject: |
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Katastrofo wrote:
Thanks Orio and Patrick, I'll keep at it! |
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