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SonicScot
Joined: 01 Dec 2011
Posts: 2697
Location: Scottish Highlands
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 Posted: Fri Nov 02, 2012 5:43 pm Post subject: Lens 'A' v Lens 'B' REVEALED |
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SonicScot wrote:
So, I have two lenses of identical focal length and aperture.
I took them out today to shoot some comparison shots.
All shots were taken with a 7D, on a Manfrotto tripod, with MLU and wireless remote.
At apertures other than wide open they are almost identical in performance.
They look different at maximum aperture.
Which do you prefer and why? 
Lens 'A' is always the first shown.
No artistic merit intended.
No post production, shot in RAW.
#1
#2
#3
#4
#5
#6
#7
#8
One example of 100% crop, again wide open.
#1
#2
Last edited by SonicScot on Tue Nov 06, 2012 8:04 pm; edited 2 times in total |
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Aanything
Joined: 27 Aug 2011
Posts: 2187
Location: Piacenza, Italy
Expire: 2014-05-30
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| Posted: Fri Nov 02, 2012 5:58 pm Post subject: |
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Aanything wrote:
They are similar. I'd choose lens A, mostly because of OOF rendering, that seems the biggest difference between the two.
Also, the last crop look sharper on lens A.
Both look good, anyway.
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twinquartz
Joined: 11 Jun 2012
Posts: 316
Location: Sweden
Expire: 2013-10-29
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| Posted: Fri Nov 02, 2012 6:23 pm Post subject: |
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twinquartz wrote:
Spontaneously: lens A.
Why? Better contrast/resolution.
Last edited by twinquartz on Fri Nov 02, 2012 6:29 pm; edited 2 times in total |
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hifisapi
Joined: 25 Sep 2012
Posts: 941
Location: USA
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| Posted: Fri Nov 02, 2012 6:27 pm Post subject: |
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hifisapi wrote:
lens A, better bokeh.
_________________
===========
ACQUIRED OVER 30 YEARS:
Cameras: DSLR=Pentax istDS FILM=Pentax SP, SP-F, ESII, SP1000, KX, K2
Lenses : Pentax M42 = Super Multi Coated Takumars 50/1.4 55/1.8 100/4-BELLOWS 500/4.5 1000/8 135-600/6.7 Pentax PK= SMC Pentax-Ks K17/4-FF Fisheye K18/3.5 K20/4 K24/3.5 K28/3.5 K28/2 K35/3.5 K35/2 K50/1.2 K50/1.4K 50/4-MACROK 55/1.8 K85/1.8 K100/4-MACRO K100/4-BELLOWS K105/2.8 K120/2.8 K135/3.5 K135/2.5 K150/4 K200/4 K400/5.6 K45-125/4K 85-210/4.5 Pentax PKM = SMC Pentax-M M40/2.8-Pancake M50/1.4 M75-150/4 M80-200/4.5 Pentax PKA= SMC Pentax-A A15/3.5 A50/2.8-MACRO A28/2 A35/2 A50/1.4 A135/2.8 A200/4 A*300/4 A35-105/3.5 A24-50/4 A70-210/4 TAMRON AD2= SP80-200/2.8 SP180/2.5 TOKINA AT-X PK= ATX28-85/3.5-4.5 ATX35-70/2.8 ATX60-120/2.8 ATX80-200/2.8 ATX100-300/4 ATX90/2.5 MACRO KIRON-LESTER DINE PK = 105/2.8-MACRO VIVITAR PK = 135/2.8-MACRO 28-85/4 NOFLEXAR AUTOBELLOWS PK = 60/4 105/4 |
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hifisapi
Joined: 25 Sep 2012
Posts: 941
Location: USA
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| Posted: Fri Nov 02, 2012 6:27 pm Post subject: |
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hifisapi wrote:
BTW, are you going to reveal what lens A and lens B are?
_________________
===========
ACQUIRED OVER 30 YEARS:
Cameras: DSLR=Pentax istDS FILM=Pentax SP, SP-F, ESII, SP1000, KX, K2
Lenses : Pentax M42 = Super Multi Coated Takumars 50/1.4 55/1.8 100/4-BELLOWS 500/4.5 1000/8 135-600/6.7 Pentax PK= SMC Pentax-Ks K17/4-FF Fisheye K18/3.5 K20/4 K24/3.5 K28/3.5 K28/2 K35/3.5 K35/2 K50/1.2 K50/1.4K 50/4-MACROK 55/1.8 K85/1.8 K100/4-MACRO K100/4-BELLOWS K105/2.8 K120/2.8 K135/3.5 K135/2.5 K150/4 K200/4 K400/5.6 K45-125/4K 85-210/4.5 Pentax PKM = SMC Pentax-M M40/2.8-Pancake M50/1.4 M75-150/4 M80-200/4.5 Pentax PKA= SMC Pentax-A A15/3.5 A50/2.8-MACRO A28/2 A35/2 A50/1.4 A135/2.8 A200/4 A*300/4 A35-105/3.5 A24-50/4 A70-210/4 TAMRON AD2= SP80-200/2.8 SP180/2.5 TOKINA AT-X PK= ATX28-85/3.5-4.5 ATX35-70/2.8 ATX60-120/2.8 ATX80-200/2.8 ATX100-300/4 ATX90/2.5 MACRO KIRON-LESTER DINE PK = 105/2.8-MACRO VIVITAR PK = 135/2.8-MACRO 28-85/4 NOFLEXAR AUTOBELLOWS PK = 60/4 105/4 |
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twinquartz
Joined: 11 Jun 2012
Posts: 316
Location: Sweden
Expire: 2013-10-29
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| Posted: Fri Nov 02, 2012 6:30 pm Post subject: |
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twinquartz wrote:
| hifisapi wrote: |
| BTW, are you going to reveal what lens A and lens B are? |
I hope he will  |
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patrickh
Joined: 23 Aug 2007
Posts: 8551
Location: Oregon
Expire: 2011-11-18
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| Posted: Fri Nov 02, 2012 6:31 pm Post subject: |
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patrickh wrote:
+1 for A. OOF
patrickh
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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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martinsmith99
Joined: 31 Aug 2008
Posts: 6950
Location: S Glos, UK
Expire: 2013-11-18
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| Posted: Fri Nov 02, 2012 7:03 pm Post subject: |
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martinsmith99 wrote:
A for sharpness, contrast, colour & bokeh.
Also, B has some more pronounced CA going on.
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dok
Joined: 03 Jun 2011
Posts: 34
Location: France
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| Posted: Fri Nov 02, 2012 7:07 pm Post subject: |
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dok wrote:
A is clearly sharper. Smoother bokeh too, but I really like the bokeh B too. More distracting but a bit more interesting IMHO.
_________________
M42 : Fujinon EBC W 35 1.9; Fujinon EBC T 135 2.5; aus Jena DDR Pancolar electric MC 50 1.8; Jupiter 11A 135 4; Kaleinar 5H MC 100 2.8; Pentacon auto 29 2.8 MULTI COATING; Pentacon auto 29 2.8 MADE IN G.D.R.; Pentacon auto MC 135 2.8 (made in Japan!?); Helios 44-2 58 2; Helios 44-4 58 2; Helios 44-5 58 2; Carenar auto 55 1.4; Industar 50-2 50 3.5; Super Takumar 28 3.5; SMC Takumar 35 3.5; SMC Takumar 55 1.8; Sigma Mini-Tele MC 135 3.5; Pentacon 200 4
CONTAX : CZ Distagon 35 2.8; CZ Planar 50 1.7; Makinon 28 2.8 MC; Tamron 24 2.5. |
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RAART
Joined: 10 Oct 2012
Posts: 497
Location: Oakville, ON, Canada
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| Posted: Fri Nov 02, 2012 7:22 pm Post subject: |
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RAART wrote:
Lens A for sure...
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FOR SALE:
Do you have Pentax-A or F or FA primes and like to trade?
Here is the list what I have to trade/sale:
Primes: - Kiron 28mm f2 (C/Y); Vivitar 28mm f2.5 Auto (FD); Minolta MD 50mm f2 (incl. adapter to m4/3); Miranda Auto 35mm f2.8 EC (incl. adapter to m4/3); Miranda Auto 135mm f2.8 EC (incl. adapter to m4/3);
Zoom Lenses:
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SonicScot
Joined: 01 Dec 2011
Posts: 2697
Location: Scottish Highlands
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| Posted: Fri Nov 02, 2012 7:38 pm Post subject: |
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SonicScot wrote:
| twinquartz wrote: |
| hifisapi wrote: |
| BTW, are you going to reveal what lens A and lens B are? |
I hope he will |
All in good time |
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Pontus
Joined: 18 Dec 2011
Posts: 1471
Location: Jakobstad, Finland
Expire: 2016-08-25
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| Posted: Fri Nov 02, 2012 7:40 pm Post subject: |
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Pontus wrote:
Definitely A except for funky impressionistic pictures. B is a bit like Meyer trioplan 100/2.8
Tough choice, keep both?
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Misha_M
Joined: 08 Oct 2012
Posts: 178
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| Posted: Fri Nov 02, 2012 8:52 pm Post subject: |
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Misha_M wrote:
A is a little sharper, but I liked the drawing and the bokeh of B.
I would go for lens B.
P.S:
B reminds me of the Jupiter-9...
_________________
Tair 11 133 f/2.8 1958
Jupiter 9 85 f/2 1959
Helios 44M 58 f/2 1978
Helios 44-2 58 f/2 1977
Helios 44 (13 blades) 1959
Helios 77M4 50 f/1.8
Zenitar-M 50 f/1.7 1986
Industar-61 L\Z 50 f/2.8
Helios 40-2, 85 f/1.5 1974 |
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SonicScot
Joined: 01 Dec 2011
Posts: 2697
Location: Scottish Highlands
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| Posted: Fri Nov 02, 2012 8:55 pm Post subject: |
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SonicScot wrote:
| Pontus wrote: |
Definitely A except for funky impressionistic pictures. B is a bit like Meyer trioplan 100/2.8
Tough choice, keep both? |
I've always thought the bokeh of B looks like the Trioplan bokeh.  |
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anscochrome
Joined: 23 Dec 2010
Posts: 115
Location: Omaha, NE
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| Posted: Fri Nov 02, 2012 9:09 pm Post subject: |
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anscochrome wrote:
A=more contrast, grabs my eye first. I have never, nor will I ever give a diddly damn/rats ass about bokeh-didn't even look at it when comparing these. |
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fermy
Joined: 17 Feb 2012
Posts: 1974
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| Posted: Fri Nov 02, 2012 9:10 pm Post subject: |
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fermy wrote:
I prefer A as well, better bokeh and contrast. However, B seems quite good too.
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Pontus
Joined: 18 Dec 2011
Posts: 1471
Location: Jakobstad, Finland
Expire: 2016-08-25
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| Posted: Fri Nov 02, 2012 9:17 pm Post subject: |
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Pontus wrote:
| anscochrome wrote: |
| A=more contrast, grabs my eye first. I have never, nor will I ever give a diddly damn/rats ass about bokeh-didn't even look at it when comparing these. |
I respect your opinion but compare picture 5 and 6. 5 is booring but 6 is quite nice, and that's because of the bokeh... Then agai, that's just my subjective taste.
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TAo2
Joined: 09 Mar 2012
Posts: 319
Location: Scotland
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| Posted: Fri Nov 02, 2012 9:22 pm Post subject: |
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TAo2 wrote:
A - only for the deeper, more vibrant colour and contrast. Ah actually think B is sharper...'till the 100% crop #5+6 - B looks more closely focused than A and strangely, more colour and contrast. B'S OOF looks like my Pentacon auto MC, 2.8/135.
Oh but my Pentacon's not as soft at 100%... |
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SonicScot
Joined: 01 Dec 2011
Posts: 2697
Location: Scottish Highlands
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| Posted: Fri Nov 02, 2012 9:33 pm Post subject: |
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SonicScot wrote:
| anscochrome wrote: |
| A=more contrast, grabs my eye first. I have never, nor will I ever give a diddly damn/rats ass about bokeh-didn't even look at it when comparing these. |
Each to their own
Though I think a good subject with good bokeh will always beat the same subject with bad bokeh. |
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Oreste
Joined: 08 Sep 2012
Posts: 451
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| Posted: Fri Nov 02, 2012 10:05 pm Post subject: |
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Oreste wrote:
| SonicScot wrote: |
| anscochrome wrote: |
| A=more contrast, grabs my eye first. I have never, nor will I ever give a diddly damn/rats ass about bokeh-didn't even look at it when comparing these. |
Each to their own
Though I think a good subject with good bokeh will always beat the same subject with bad bokeh. |
The out-of-focus circles in the second lens are stronger. The A lens seems preferable overall. |
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skida
Joined: 02 Mar 2012
Posts: 1826
Location: North East England
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| Posted: Fri Nov 02, 2012 10:32 pm Post subject: |
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skida wrote:
Definitely A over B, due to better contrast and less distracting background highlight flaring. |
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SonicScot
Joined: 01 Dec 2011
Posts: 2697
Location: Scottish Highlands
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| Posted: Sat Nov 03, 2012 11:46 am Post subject: |
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SonicScot wrote:
I'll add that I went to great lengths to ensure focus was exactly the same with both lenses. I used live view with focus peaking and took numerous exposures until I was sure I couldn't get better focus matching between the two lenses.
I also think that despite the two lenses claiming to be the same focal length, it's clear that lens B is slightly longer than A. Again, I took great care not to move the tripod between shots yet there is a very slight difference in perspective.
Here's an example with more distance to the subject;
#1
#2
And two examples much closer to the subject;
#1
#2
#3
#4
Again, all images are wide open.
If anyone believes they can identify either lens, please go right ahead. |
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Excalibur
Joined: 19 Jul 2009
Posts: 5017
Location: UK
Expire: 2014-04-21
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| Posted: Sat Nov 03, 2012 12:02 pm Post subject: |
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Excalibur wrote:
****If anyone believes they can identify either lens, please go right ahead.***
HUH!.........erm well the leaves in the background look like Rhubarb do I get a clap
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Canon A1, AV1, T70 & T90, EOS 300 and EOS300v, Chinon CE and CP-7M. Contax 139, Fuji STX-2, Konica Autoreflex TC, FS-1, FT-1, Minolta X-700, X-300, XD-11, SRT101b, Nikon EM, FM, F4, F90X, Olympus OM2, Pentax S3, Spotmatic, Pentax ME super, Praktica TL 5B, & BC1, , Ricoh KR10super, Yashica T5D, Bronica Etrs, Mamiya RB67 pro AND drum roll:- a Sony Nex 3
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SonicScot
Joined: 01 Dec 2011
Posts: 2697
Location: Scottish Highlands
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| Posted: Sat Nov 03, 2012 12:08 pm Post subject: |
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SonicScot wrote:
| Excalibur wrote: |
****If anyone believes they can identify either lens, please go right ahead.***
HUH!.........erm well the leaves in the background look like Rhubarb do I get a clap |
A very big clap because that's Giant Rhubarb in the background, also known as Dinosaur Food. The leaves grow up to 12 feet across.  |
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enliten
Joined: 20 Sep 2011
Posts: 201
Location: Perth, WA
Expire: 2014-07-03
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| Posted: Sat Nov 03, 2012 2:02 pm Post subject: |
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enliten wrote:
lens b is a pentacon or a meyer optik
lens a looks like a sonnar?
-Ben
_________________
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Digital: Canon EOS 7D
Film SLRs: Zenit 122, Nikon F55, Nikon FM2, Pentax Spotmatic, Pentax ME Super, Pentax K1000, Minolta SR1
Rangefinders: Konica Auto S2, Zeiss Ikon Contessa LKE, Zeiss Ikon Continette, Zeiss Ikon Ikonta 521/16, Fed 5B
50's: Super Takumar 50 f1.4, Helios 44-m6,, Minolta MD 50 f1.4, Meyer Optik Oreston 50 f1.8, Olympus 50 f1.4, Industar 55 f2.8 (RF), Jupiter-3 50 f1.5 (RF), Yashinon DS 50 f1.4, Zeiss Jena 50 f2.8, Zeiss Pancolar 50 f1.8
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Tele: Jupiter-21a 200mm f4
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