First 40/1.4 Photos

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a few quick scans from my first roll through this lens.

delta 100 in ddx

all shots taken at 1.4
no great art but it seems the lens is sharp.

joe
 

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Looks sharp and good.
I agree with sockdaddy though that there's a lot in focus for being shot at 1.4
 
Something a bit wrong there, I get 'bokeh' when focussed at ~2m like that attached.

Having said that, Joe seems to have focussed much further out in this photos and I get maybe the same with my 40/1.4 @ f/1.4. However, I don't have any sample to hand.
 

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I think the DOF looks quite normal. It shows 40mm is quite a bit wider than 50mm, which it is, and none of the shots are focussed really close. In the second shot you can see the foreground is definitely out of focus.

What could there be 'wrong' anyway? There are no other factors that could influence dof. Judging by the vignetting it's certainly shot at 1.4 and Joe confirms this.

Anyway, I think the lens looks good and I like the pictures. Since seeing results of this lens I've cursed myself multiple times for buying a Bessa R (LTM) and not an M-mount body. Not that I could afford any other body though, let alone the lens... 😉
 
surprised at the comments.
i looked at these shots and thought there was so little dof, compared to a 35 shot at 5.6 or more. i rarely see oof areas near in my pics as i often use hyperfocal distance when shooting on the street. but they were all at 1.4 and at 250 or 500th of a second.

joe
 
Joe, isn't that one of the "risks", using the 1.4/40 like a usual wide angle? Isn't this lens behaving more like a 50mm lens with a wider viewing angle?

Looking especially at the low gradient from sharp to "out of focus" that is visible in your samples it might influence the user to rate the picture as generally "unsharp" or having to many distracting details.

I suggest to consider this when using your new lens wide open (e.g. focussing to close distances) (This might be the reasen I never got used to the 2/40 Summicron).
 
the shopping cart is not in focus, i focused on the bunny painted on the glass window. that one looks like i thought it might.
i was 'thinking' wide when shooting, this is true. my first reaction when doing a couple of these shots was, 'this ain't the 25'! i thought it would 'feel' more like the 35 but maybe thinking 50 would be a better idea.

anyway, i'm clearly going to have a learning curve with this lens.
 
Barry Thornton (died in 2003) dedicated his book "Edge of Darkness" to the high-definition monochrome photograph. He discusses about every aspect that influences sharpness, resolution, contrast etc. in a black&white print.

Half of his book covers darkroom techniques (e.g. development, printing techniques), the other half gives room for lenses, camera adjustment etc. and includes some aspects of human perception of the thing called "sharpness".

Barry is primarily a fine art printer. The examples in his book are mostly landscape photographs, taken with a Rollei SL66 camera. Rangefinders are covered in a small section where he discusses focussing.

I like his book very much. It offers valuable tipps and tricks (especially for darkroom equipment and processing) to improve techniques and to avoid mistakes. It really helps to understand interdependencies for high definition and sharp prints. As Gene stated: " It will change your whole way of thinking about photo "sharpness."

Besides all valuable information, it is real fun to read Barry's book. Especially I like his way to include anecdotes from his day-to-day life to explain or underline his photographic results.
 
i like those vignetting. But isnt 40mm f1.4 abit too early to be getting them? Im a noob RF user, but is there any technical reason why RF seem to be me prone to vignetting than SLRs with good primes(the 40nocton is a very good prime).
 
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