Archived posting to the Leica Users Group, 2011/04/12

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Subject: [Leica] DOF of 80/1.4 at 1.4 slimmer than 50mm at 1.4?
From: lluisripollquerol at gmail.com (Lluis Ripoll)
Date: Tue, 12 Apr 2011 23:23:54 +0200
References: <747098.9554.qm@web82101.mail.mud.yahoo.com> <BD38DC430E434F79B63832050B44DA53@jimnichols> <BANLkTinCi_aYvnyQwfM+g=DF=yB+4gFX4Q@mail.gmail.com> <BLU0-SMTP63FFBE73F8419F8D7EEA128CA80@phx.gbl> <476BA3A4-0AC3-4E8C-8B55-B586467EEF9B@btinternet.com>

Really Frank?

A Summilux 75 is more difficult to focus than a Nocti (both wide open) ?

I've never tried a Nocti, I love the fine focusing of pictures I've  
saw from Steve, Rei and others, as well the creamy effect, and I  
usually discarded it from my thaughts thinking that it would be very  
difficult to focus, I use the Lux 75, it is not easy properly focus at  
1.4 but not impossible.

Saludos
Lluis


El 11/04/2011, a las 14:35, Frank Dernie escribi?:

>
> On 11 Apr, 2011, at 12:41, Vick Ko wrote:
>
>> Hello
>>
>> I've been playing with my DMR with the 80mm f1.4.
>>
>> I'm finding it a lot more difficult to use and capture proper focus  
>> at f1.4 than I expected.
>>
>> Is the dof of an 80mm at f1.4 thinner than the dof of a 50mm at f1.4?
>
> Yes, noticeably.
>
>>
>> And is this typical of what people found, using their rf 75mm  
>> Summiluxes - very difficult to capture proper focus?
>
> More difficult than a Noctilux, but not impossible.
>
>>
>> I suppose it didn't help, trying to photograph a 7 month old boy,  
>> who doesn't quite understand sitting still yet   :-)
>
> Fast lenses wide open with children is a 1 in 50 strategy...
>
>>
>> Vick
>>
>> _______________________________________________
>> Leica Users Group.
>> See http://leica-users.org/mailman/listinfo/lug for more information
>
> Frank
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information



Replies: Reply from afirkin at afirkin.com (afirkin at afirkin.com) ([Leica] DOF of 80/1.4 at 1.4 slimmer than 50mm at 1.4?)
Reply from Frank.Dernie at btinternet.com (Frank Dernie) ([Leica] DOF of 80/1.4 at 1.4 slimmer than 50mm at 1.4?)
Reply from benedenia at gmail.com (Marty Deveney) ([Leica] DOF of 80/1.4 at 1.4 slimmer than 50mm at 1.4?)
In reply to: Message from rgacpa at yahoo.com (Bob Adler) ([Leica] IMG: Foothill Park)
Message from jhnichols at lighttube.net (Jim Nichols) ([Leica] IMG: Foothill Park)
Message from richard at imagecraft.com (Richard Man) ([Leica] IMG: Foothill Park)
Message from vick.ko at sympatico.ca (Vick Ko) ([Leica] DOF of 80/1.4 at 1.4 slimmer than 50mm at 1.4?)
Message from Frank.Dernie at btinternet.com (Frank Dernie) ([Leica] DOF of 80/1.4 at 1.4 slimmer than 50mm at 1.4?)