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Archive 2008 · Really fast 50 Bokeh
  
 
cogitech
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p.3 #1 · p.3 #1 · Really fast 50 Bokeh


...it can deal fairly well with busy backgrounds, like the lattice and fence boards here, wide open on the 5D:







...and of course it certainly continues to bring the resolution:








Jun 05, 2008 at 05:48 PM
robsteve
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p.3 #2 · p.3 #2 · Really fast 50 Bokeh


What type of sharpening are you using for your files?


Jun 05, 2008 at 05:48 PM
cogitech
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p.3 #3 · p.3 #3 · Really fast 50 Bokeh


robsteve wrote:
What type of sharpening are you using for your files?


Some standard Bibble sharpening, typically about 150 on the 400 scale, plus some of Sean Puckett's "Sharpie" plugin, which is a local contrast enhancer (like the "clarity" slider in one of the "other" apps), not a "sharpener" per se. The two work well together.

But, as you know, it is impossible to sharpen detail that is not there.

I'm still blown away by the subtle details and tones in my daughter's skin. IMO, this is truly remarkable for an f1.2 lens wide open. I could do a 20x30 with this file, no problem.

Edited by cogitech on Jun 05, 2008 at 12:57 PM GMT


Edited on Jun 05, 2008 at 05:57 PM



Jun 05, 2008 at 05:52 PM
robsteve
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p.3 #4 · p.3 #4 · Really fast 50 Bokeh


cogitech wrote:
Some standard Bibble sharpening, typically about 150 on the 400 scale, plus some of Sean Puckett's "Sharpie" plugin, which is a local contrast enhancer, not a "sharpener" per se. The two work well together.


I was noticing some odd things with the dog's fur and in one of your earlier posts, your daughters hair. Probably from the local contrast.

I am just using the Lightroom conversion and smart sharpening at .4 pixels and 150%.

Some of the harsh edges in the bokeh of some of the samples may be from using a local contrast action. Though your last few samples do have better Bokeh than Leon's samples.

Robert


Edited on Jun 05, 2008 at 05:58 PM



Jun 05, 2008 at 05:57 PM
cogitech
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p.3 #5 · p.3 #5 · Really fast 50 Bokeh


There might be some JPEG artifacts in the dog's fur. I crammed that much resolution into a 400kb JPEG.

Oh, and I just realized that some of the web-sized JPEGs likely have some USM. My "Web JPEG" batch queue is setup to call ImageMagick and apply some USM after Bibble does the resize and output. I sometimes turn this off or on depending on what I'm doing. None of the 100% crops would have this though.

Just looked again, the one on page one of my daughter and dog definitely had the extra USM applied. I'd agree that it is too much, if that's what you are thinking. I just stuck an arbitrary value in the script. It works fine for most quick things, but once in a while it is just too much.

Edited on Jun 05, 2008 at 06:06 PM



Jun 05, 2008 at 05:59 PM
ovredal73
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p.3 #6 · p.3 #6 · Really fast 50 Bokeh


Paul, Leon. Wow. Paul, the dog shot is just amazing. We should start a 58 Rokkor fan club And the Rokkor (also in my own experience) does such nice renderings of ugly backgrounds like wired fences etc.

My only worry about this lens (metal copy) is the Thorium it probably contains. Donīt like the idea of having a cancer machine hanging at hip level all day
Leon, Paul - the copies you are using for these shots, are they newer, radiation-free versions with rubber grip or old metal ones like mine ?

Edited on Jun 05, 2008 at 06:13 PM



Jun 05, 2008 at 06:10 PM
robsteve
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p.3 #7 · p.3 #7 · Really fast 50 Bokeh


I just went out into the backyard to see if I can find the ugliest background to test for out of focus highlights. To be fair to the other lenses, I stopped down to f1.2, rather than shoot wide open. In this shot there is a chainlink fence a bit over a foot behind the flowers. I focused on the pink flower. This is at the minimum focusing distance of the Noctilux. It was quite windy, so I just fired when the flower came into focus.



Edited on Jun 05, 2008 at 06:26 PM



Jun 05, 2008 at 06:24 PM
mh2000
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p.3 #8 · p.3 #8 · Really fast 50 Bokeh


As "alternatives" are being considered, I think it is both appropriate and helpful to have "mainstream" samples presented for comparison...

>>Since they are Canon AF lenses in native EF mount, they don't really qualify as "Alternative", but I'm not opposed to seeing some shots.

The alternative forum was created for the brands other than Canon or Nikon, which have their own forums. It was initially created to host the DMR Bible thread, because the Canon guys were complaining about it being in their forum.



Jun 05, 2008 at 06:36 PM
robsteve
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p.3 #9 · p.3 #9 · Really fast 50 Bokeh


I found another flower shot from a few days ago when I took the pictures posted at the top of this thread. This was at f1 and has a busy background.




Jun 05, 2008 at 07:01 PM
robsteve
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p.3 #10 · p.3 #10 · Really fast 50 Bokeh


Anden wrote:
Nikor 50 1.2 ai on 5D

http://obj.fotosidan.se/obj/photo/cc/cc18650d1cdacb4218821e9e7fa0e7f5.jpg.jpg


This looks great. Very smooth bokeh and oof transition.

Robert



Jun 07, 2008 at 12:48 PM
 

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StevenPA
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p.3 #11 · p.3 #11 · Really fast 50 Bokeh


Fantastic shots, guys. It's nice to know somewhere in the world, someone has sunny days.


Jun 07, 2008 at 12:58 PM
AGeoJO
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p.3 #12 · p.3 #12 · Really fast 50 Bokeh


These are two shots using a Noctilux at f/1.0 on Leica M8 -

At the closest focusing distance:







And almost at infinity:







Edited on Jun 07, 2008 at 01:57 PM



Jun 07, 2008 at 01:54 PM
BKue
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p.3 #13 · p.3 #13 · Really fast 50 Bokeh


I use Minolta manual film bodies, but as a big fan of 1970īs to early 80īs glass, I follow the conversion threads with much interest.
The following close-ups use a Minolta MC Rokkor-PG 1.2/58mm, combined with Minolta No.1 and/or No.2 Achromatic Close-Up lenses, on Minolta XD-7 (aka. XD-11). Aperture settings between 2.8 and 5.6, 1/125 to 1/500 sec.
The shots use available light, handheld, AGFA CT precisa 100 film, scanned with a Nikon Super Coolscan 5000 ED @ 4000 ppi. The images are downsized to ca. 1200 x 1600 pixels. The IQ exp. the smoothness is severely affected by the scan compared to the original slide. (I have not yet figured out how to tackle that problem.)
Would be nice to see some DSLR macro shots with that combination.









Jun 08, 2008 at 08:03 PM
BKue
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p.3 #14 · p.3 #14 · Really fast 50 Bokeh


Oops... didnīt mean to use that much of your computer screen, sorry.


Jun 08, 2008 at 08:07 PM
robsteve
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p.3 #15 · p.3 #15 · Really fast 50 Bokeh


Anybody here buy one of the couple Canon 50mm f1.2 SSC FD lenses that sold on ebay recently?


Jun 10, 2008 at 01:06 PM
KOJI
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p.3 #16 · p.3 #16 · Really fast 50 Bokeh


Hi Rob,

Which lens are you talking about

A) Canon FD 55mm F1.2 S.S.C aspherical or
B) Canon nFD 50mm F1.2 L ? (nFD = new FD)

Both employ ashperical lens element, some comparison shots are >
http://pulsar.la.coocan.jp/lenstest/CANON/canon_fd50mm.htm

This guy said FD 55/1.2 S.S.C. is better lens overall, and mentioned
about Noct Nikkor 58/1.2 which has a better at wide open for point source
but after f2.8 canon's are generally making good images.

I bought one from KEH FD 55mm/F1.2 S.S.C. Aspherical, some (not good) examples are >
http://www.pbase.com/kkawakami/gallery/fd_55mm_f12_ssc

Edited on Jun 10, 2008 at 03:28 PM



Jun 10, 2008 at 03:02 PM
michael49
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p.3 #17 · p.3 #17 · Really fast 50 Bokeh


cogitech wrote:
A smaller version:

http://www.cogitech.ca/photos/Rokkor/bokeh/img_9659.jpg


Love this one; incredibly sharpness at this aperature.



Jun 10, 2008 at 04:24 PM
cogitech
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p.3 #18 · p.3 #18 · Really fast 50 Bokeh


michael49 wrote:
Love this one; incredibly sharpness at this aperature.


I agree. The only normal lenses that can compete at this level, at f1.2, are:

Contax 55/1.2 - $ several thousand, very rare and the bokeh is not as good as the Rokkor.

Noct-Nikkor 58/1.2 - $ several thousand, very rare and only the original, hand-polished versions are really worth the money. I've been told that it is identical in optical design and formula to the Rokkor.

SMC-Pentax 50/1.2 - more affordable but very rare and the bokeh suffers due to over-corrected spherical aberration (like the Contax).

The balance of wide-open sharpness, bokeh, availablility, and price of the Rokkor is unbeatable, IMO.



Jun 10, 2008 at 05:06 PM
robsteve
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p.3 #19 · p.3 #19 · Really fast 50 Bokeh


KOJI wrote:
Hi Rob,

Which lens are you talking about

A) Canon FD 55mm F1.2 S.S.C aspherical or
B) Canon nFD 50mm F1.2 L ? (nFD = new FD)


I am referring to the FD 55mm f1.2 SSC.



Jun 10, 2008 at 05:30 PM
DoubleNegative
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p.3 #20 · p.3 #20 · Really fast 50 Bokeh


Okay, perhaps not so "alternative" but they are Canon EF 50mm f/1.2L shots (on a 1D2N)... Click for larger/info:

Jun 10, 2008 at 05:45 PM
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