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revers
Joined: 13 May 2010 Posts: 574 Location: In the country just north of Toronto Canada
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Posted: Wed Sep 14, 2011 8:49 pm Post subject: Extension tube vs teleconverter |
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revers wrote:
Experiment
1. This is a shot taken with a Canon FD 50mm 1:2 macro @ max magnification.
2. Same lens with a 25mm extension tube for 1:1 magnification.
3. Same lens with a Soligor 2x telconverter for 1:1 magnification.
The telconverter gave me more working distance than did the tube but as you can see it also degraded the image in comparison. Unfortunately, I did not think to measure the end of lens distance to the subject when I did this.
All shots were @ f16. _________________ Ron
Olympus OM-D E-M5, 14-42 & 45/1.8.
Panasonic G1, GF1, 14-45, 45-200 & various legacy lenses.
Canon S5, Sony 1.7 Tele-converter & Raynox DCR 150 Macro converter. |
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luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Thu Sep 15, 2011 6:36 am Post subject: |
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luisalegria wrote:
Interesting.
I see little image degradation, if any _________________ 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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visualopsins
Joined: 05 Mar 2009 Posts: 10974 Location: California
Expire: 2025-04-11
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Posted: Thu Sep 15, 2011 1:47 pm Post subject: |
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visualopsins wrote:
I think 100% corner crops will clearly (or not so clearly ) show the difference! _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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poilu
Joined: 26 Aug 2007 Posts: 10472 Location: Greece
Expire: 2019-08-29
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Posted: Thu Sep 15, 2011 2:31 pm Post subject: |
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poilu wrote:
Luis wrote: |
I see little image degradation, if any |
I don't see any image, I see only degradation _________________ T* |
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walter g
Joined: 20 Feb 2010 Posts: 2463 Location: NC, USA
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Posted: Thu Sep 15, 2011 4:37 pm Post subject: |
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walter g wrote:
At this size I see no degradation. The converter shot actually shows more detail then the tube _________________
Main cameras
Panasonic G5,Nikon J1,Pentax Q10,Sony Nex 6
Minolta MC W SI 2.5/28, MD 2.8/28, MC W SG 3.5/28, MC Celtic 3.5/28, MC W HG 2.8/35, MD Celtic 2.8/35, QE 4/35, Rokkor X 2/45, MC Rokkor X PG 1.4/50, MC Rokkor X PG 1.7/50, MD Rokkor X 1.7/50, MD 2/50, MC Rokkor PF 1.7/55, MC Rokkor PF 1.9/55, Auto Tele Rokkor PG 2.8/135, MC Tele Rokkor QD 3.5/135, TC 4/135, MC Celtic 4/200, MC Tele Rokkor PE 4.5/200
MD 28-70 f3.5-4.8, MD Macro 35-70 f3.5, Md 70-210 f4, MD Rokkor X 75-200 f4.5, MD 100-200 f5.6
Nikon Nikkor 4/20, O Auto 2/35, S Auto 1.4/50..... Miranda Auto 2.8/28, Auto 2.8/35, Auto 1.4/50, Auto EC 1.4/50, Auto 1.8/50, Auto EC 1.8/50,Auto 1.9/50, Auto 3.5/135
Various Soligor,Sun,Fujita,Komura,Spitatone, etc. Lenses
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David
Joined: 13 Apr 2011 Posts: 1869 Location: Denver, Colorado
Expire: 2013-01-25
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Posted: Thu Sep 15, 2011 7:16 pm Post subject: |
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David wrote:
The tube shot does not have as much noise as the TC, however. That said, the TC seems to perform better in this scenario. _________________ http://www.youtube.com/user/hancockDavidM |
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Scheimpflug
Joined: 06 Feb 2010 Posts: 1888 Location: New Zealand / USA
Expire: 2011-11-18
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Posted: Thu Sep 15, 2011 8:41 pm Post subject: |
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Scheimpflug wrote:
I too couldn't tell the difference, but then I noticed that the flare on the specular highlights is significantly different.
Do you happen to remember the exposure settings (ISO and aperture in particular) for the two shots? _________________ Sigma DP1, Nikon D40 (hers ), Polaroid x530, Pentax P30t, Pentax P50, (P30t/P50 K-A to Nikon F body mount conversion)
Nikon: 18-55/3.5-5.6 "G ED II DX" (F) Soligor: 28/2.8 (FL->F converted), 135/3.5 (F), 3x TC (F, modified) Kalimar: 28-85/3.5 (F)
Vivitar: 70-210/2.8-4.0 Version 3 (F), Tele 500/6.3 Preset (F), 19/3.8 (F) Minolta: 300/5.6 (SR/MC/MD pending F conversion)
Tamron: 28/2.8 (Adaptall) Panagor: 28/2.5 (FD) Aetna: 300/5.6 (F) Osawa: MC 28/2.8 (F)
Vintage Lenses: Dallmeyer: 1940s A.M. 14in 356mm f4 (ULF->M42) 1930s Adon Telephoto Taylor, Taylor & Hobson: 1880s Rapid Rectilinear 8 1/2 x 6 1/2 11.31in f/8 (LF->?)
Parts Lenses: Nikon 35-135/3.5-4.5 (F), Sigma 70-210/4.5 (F), Nikon 50/1.8 Series E (F) |
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revers
Joined: 13 May 2010 Posts: 574 Location: In the country just north of Toronto Canada
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Posted: Thu Sep 15, 2011 9:26 pm Post subject: |
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revers wrote:
Scheimpflug wrote: |
I too couldn't tell the difference, but then I noticed that the flare on the specular highlights is significantly different.
Do you happen to remember the exposure settings (ISO and aperture in particular) for the two shots? |
ISO 200
f16 for all shots. _________________ Ron
Olympus OM-D E-M5, 14-42 & 45/1.8.
Panasonic G1, GF1, 14-45, 45-200 & various legacy lenses.
Canon S5, Sony 1.7 Tele-converter & Raynox DCR 150 Macro converter. |
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Scheimpflug
Joined: 06 Feb 2010 Posts: 1888 Location: New Zealand / USA
Expire: 2011-11-18
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Posted: Thu Sep 15, 2011 9:31 pm Post subject: |
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Scheimpflug wrote:
revers wrote: |
ISO 200
f16 for all shots. |
Interesting... not what I would have guessed!
Do you see the star-shaped "twinkles" on the shots with the teleconverter, particularly on the lower right side of the knob? I wonder why this is more pronounced with the TC? _________________ Sigma DP1, Nikon D40 (hers ), Polaroid x530, Pentax P30t, Pentax P50, (P30t/P50 K-A to Nikon F body mount conversion)
Nikon: 18-55/3.5-5.6 "G ED II DX" (F) Soligor: 28/2.8 (FL->F converted), 135/3.5 (F), 3x TC (F, modified) Kalimar: 28-85/3.5 (F)
Vivitar: 70-210/2.8-4.0 Version 3 (F), Tele 500/6.3 Preset (F), 19/3.8 (F) Minolta: 300/5.6 (SR/MC/MD pending F conversion)
Tamron: 28/2.8 (Adaptall) Panagor: 28/2.5 (FD) Aetna: 300/5.6 (F) Osawa: MC 28/2.8 (F)
Vintage Lenses: Dallmeyer: 1940s A.M. 14in 356mm f4 (ULF->M42) 1930s Adon Telephoto Taylor, Taylor & Hobson: 1880s Rapid Rectilinear 8 1/2 x 6 1/2 11.31in f/8 (LF->?)
Parts Lenses: Nikon 35-135/3.5-4.5 (F), Sigma 70-210/4.5 (F), Nikon 50/1.8 Series E (F) |
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Mos6502
Joined: 20 Jun 2011 Posts: 960 Location: Austin
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Posted: Thu Sep 15, 2011 9:36 pm Post subject: |
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Mos6502 wrote:
I think the extension tube is sharper. It might look soft all over, but notice where the focus is, then compare.
The teleconverter gives a greater depth of field, so it might look sharper overall, but the actual point of focus isn't sharper than that with extension tube. |
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revers
Joined: 13 May 2010 Posts: 574 Location: In the country just north of Toronto Canada
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Posted: Thu Sep 15, 2011 10:35 pm Post subject: |
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revers wrote:
My focus was the top of the dome.
Interesting, the diverse opinion on which is best. If it is this close, then I suggest we go with the telconverter for greater working distance. _________________ Ron
Olympus OM-D E-M5, 14-42 & 45/1.8.
Panasonic G1, GF1, 14-45, 45-200 & various legacy lenses.
Canon S5, Sony 1.7 Tele-converter & Raynox DCR 150 Macro converter. |
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revers
Joined: 13 May 2010 Posts: 574 Location: In the country just north of Toronto Canada
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Posted: Fri Sep 16, 2011 1:58 pm Post subject: |
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revers wrote:
Here is another combination, 25mm tube pluss a Raynox DCR-150 close-up lens clipped out front.
_________________ Ron
Olympus OM-D E-M5, 14-42 & 45/1.8.
Panasonic G1, GF1, 14-45, 45-200 & various legacy lenses.
Canon S5, Sony 1.7 Tele-converter & Raynox DCR 150 Macro converter. |
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poilu
Joined: 26 Aug 2007 Posts: 10472 Location: Greece
Expire: 2019-08-29
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Posted: Fri Sep 16, 2011 2:14 pm Post subject: |
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poilu wrote:
ah, the last one look more like a photo _________________ T* |
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walter g
Joined: 20 Feb 2010 Posts: 2463 Location: NC, USA
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Posted: Fri Sep 16, 2011 4:39 pm Post subject: |
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walter g wrote:
For fun how about trying the T/C with Raynox DCR-150 close-up lens clipped out front. _________________
Main cameras
Panasonic G5,Nikon J1,Pentax Q10,Sony Nex 6
Minolta MC W SI 2.5/28, MD 2.8/28, MC W SG 3.5/28, MC Celtic 3.5/28, MC W HG 2.8/35, MD Celtic 2.8/35, QE 4/35, Rokkor X 2/45, MC Rokkor X PG 1.4/50, MC Rokkor X PG 1.7/50, MD Rokkor X 1.7/50, MD 2/50, MC Rokkor PF 1.7/55, MC Rokkor PF 1.9/55, Auto Tele Rokkor PG 2.8/135, MC Tele Rokkor QD 3.5/135, TC 4/135, MC Celtic 4/200, MC Tele Rokkor PE 4.5/200
MD 28-70 f3.5-4.8, MD Macro 35-70 f3.5, Md 70-210 f4, MD Rokkor X 75-200 f4.5, MD 100-200 f5.6
Nikon Nikkor 4/20, O Auto 2/35, S Auto 1.4/50..... Miranda Auto 2.8/28, Auto 2.8/35, Auto 1.4/50, Auto EC 1.4/50, Auto 1.8/50, Auto EC 1.8/50,Auto 1.9/50, Auto 3.5/135
Various Soligor,Sun,Fujita,Komura,Spitatone, etc. Lenses
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visualopsins
Joined: 05 Mar 2009 Posts: 10974 Location: California
Expire: 2025-04-11
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Posted: Fri Sep 16, 2011 5:48 pm Post subject: |
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visualopsins wrote:
Would like to see 100% corner crops. Of course center is sharpest, differences not so much. _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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revers
Joined: 13 May 2010 Posts: 574 Location: In the country just north of Toronto Canada
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Posted: Fri Sep 16, 2011 8:27 pm Post subject: |
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revers wrote:
visualopsins wrote: |
Would like to see 100% corner crops. Of course center is sharpest, differences not so much. |
In every case, you are seeing the full frame, there is not much left in the corners. _________________ Ron
Olympus OM-D E-M5, 14-42 & 45/1.8.
Panasonic G1, GF1, 14-45, 45-200 & various legacy lenses.
Canon S5, Sony 1.7 Tele-converter & Raynox DCR 150 Macro converter. |
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visualopsins
Joined: 05 Mar 2009 Posts: 10974 Location: California
Expire: 2025-04-11
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Posted: Fri Sep 16, 2011 10:01 pm Post subject: |
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visualopsins wrote:
revers wrote: |
visualopsins wrote: |
Would like to see 100% corner crops. Of course center is sharpest, differences not so much. |
In every case, you are seeing the full frame, there is not much left in the corners. |
The camera produces images larger than 800x600 pixel shown here, more like 4000x3000 pixels for G1/GH1.
The corner 640x480 pixels of the full 4000x3000 image will better show the differences between lenses (at the corners). Also easier to see center differences if 640x480 pixels are cropped from center of 4000x3000 pixel image.
Images made using TC can be better in the center, but worse in the corners. Same with attachment lenses like the Raynox. _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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revers
Joined: 13 May 2010 Posts: 574 Location: In the country just north of Toronto Canada
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Posted: Fri Sep 16, 2011 11:00 pm Post subject: |
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revers wrote:
visualopsins wrote: |
The camera produces images larger than 800x600 pixel shown here, more like 4000x3000 pixels for G1/GH1.
The corner 640x480 pixels of the full 4000x3000 image will better show the differences between lenses (at the corners). Also easier to see center differences if 640x480 pixels are cropped from center of 4000x3000 pixel image.
Images made using TC can be better in the center, but worse in the corners. Same with attachment lenses like the Raynox. |
I agree with what you are saying. However, it is my opinion, that in macro work the subject is foremost centered & the corners of of no consequence. We can expect the corners not to be sharp because the DoF is dropping off from the subject. _________________ Ron
Olympus OM-D E-M5, 14-42 & 45/1.8.
Panasonic G1, GF1, 14-45, 45-200 & various legacy lenses.
Canon S5, Sony 1.7 Tele-converter & Raynox DCR 150 Macro converter. |
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visualopsins
Joined: 05 Mar 2009 Posts: 10974 Location: California
Expire: 2025-04-11
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Posted: Sat Sep 17, 2011 2:53 am Post subject: |
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visualopsins wrote:
The frame-filling macro subject _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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