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M 240 with 50 Sonnar C at 1.5:

 

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Leica M9, Sonnar 50 at f2

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  • 2 weeks later...

On M9, converted in PS from DNG at F1.5, auto ISO 1/60 handheld. Uncropped.

Brothers, best friends during the pandemic.

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  • 2 weeks later...

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the Sonnar on the M4-P, scanned with a CL

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One of a series of plaques set in the steps leading up from the River Avon to Malmesbury Abbey.  ZM 50mm C-Sonnar on M10M.

 

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La Palma, the C Sonnar on my ME(220).

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Kovelswade cemetery Utrecht, the C Sonnar on my MM1

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Ready to roll. ZM 50mm C-Sonnar on M10M.

 

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  • 4 weeks later...

No need to say it is grand for portraits 😏

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  • 2 years later...

This lens ist really wonderful. its a shame that the "focus shift" debate somehow reduces the Sonnars value. Which is nonsens. It draws very unique, and I have the Summilux 50 ASPh, Summilux 35 ASPH as well as the Summilux 35 (pre ASPH). also use many 50s like all Summicron versions and Elmars, Summitar....

And I can say, this Zeiss lens is very unique. Not for everyone, sure.

 

1. C200 / M7

2. Portra 160 / M7

3. FP4 / M7

4. Kodak gold / M7

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Delta 100 / M7

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Hi everybody

I have this lens and tested it for focus shift this past week end. At 1.2m, it did front focus by 2cm at f/1.5  correct focus between f/2-F/4 and slight back focus at f/5.6 and lower aperture. I think this is the correct behavior for this lens, but I hav read somewhere on this forum that the lens could be sent to Zeiss to have it to focus correctly at F/1.5 in order to be able to use it wide open for portraits. I contacted Zeiss Switzerland by email but no answer so far. Does anyone have an address to which I could ship the lens (in EU) for calibration?
Thanks in anticipation for your help

Pierre

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vor 18 Stunden schrieb Pierre68:

At 1.2 m, it did front-focus by 2 cm at f/1.5, correct focus between f/2 - f/4, and slight back-focus at f/5.6 and lower aperture. I think this is the correct behavior for this lens ...

Indeed it is. Don't mess around with that!

A very small front-focus at full aperture actually is a good thing, as other factors—namely, re-framing after focusing—will introduce some back-focus so the two factors will compensate each other.

Just start using your lens as intended and see if the front-focus found in your test shots also shows up in your real-life shots.

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5 hours ago, 01af said:

Indeed it is. Don't mess around with that!

I tend to agree with this.

Mine also front focuses in a similar manner and at first I thought I'd try to get it optimised for f1.5. Then I thought better of it. I didn't want to worsen back focus at other apertures and the front focus is easy to compensate for. I used to lean forward slightly before pressing shutter release. Now I tend to turn the focus slightly towards infinity. A bit of practice with an EVF mounted helps to fine-tune this action.

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Mine is optimised for f2.8 and as mentioned in another thread about the C-Sonnar I too adopted the 'lean-forward' technique for wide-open use.  Here on M7 & Acros 100.

 

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Am 15.12.2022 um 18:25 schrieb Pierre68:

Hi everybody

I have this lens and tested it for focus shift this past week end. At 1.2m, it did front focus by 2cm at f/1.5  correct focus between f/2-F/4 and slight back focus at f/5.6 and lower aperture. I think this is the correct behavior for this lens, but I hav read somewhere on this forum that the lens could be sent to Zeiss to have it to focus correctly at F/1.5 in order to be able to use it wide open for portraits. I contacted Zeiss Switzerland by email but no answer so far. Does anyone have an address to which I could ship the lens (in EU) for calibration?
Thanks in anticipation for your help

Pierre

as already stated, leave it as it is...it is optimized for f2. I spoke to Zeiss about that. Unless you exclusively using this lens wide open. than I would get it calibrated for 1.5.

i am considering that, because I have a Summilux 50 ASPH, which is sharp on every aperture on every distance...amazing lens. So I might get my Sonnar calibrated for 1.5..but leaning forward 1-2 cm (on film) its perfectly fine too. so not sure yet.

 

Are there any Examples how this lens looks like wide open with perfect focus (using EVF) ?

I would be interested in seeing that.

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3 hours ago, shinobi2012 said:

Are there any Examples how this lens looks like wide open with perfect focus (using EVF) ?

There are EVF-focused examples in a thread I did a while back comparing the sonnar with 50mm Summilux ASPH, 50mm summarit f1.5 and collapsible summicron.

https://www.l-camera-forum.com/topic/302578-fifties-from-the-fifties-vs-those-from-the-modern-day/#comment-3839392

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4 hours ago, shinobi2012 said:

Are there any Examples how this lens looks like wide open with perfect focus (using EVF) ?

Couple of snaps in EVF mode as requested.
(M11, Visoflex 2, ZM 50/1.5, f/1.5)

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M10, ZM50/1.5

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