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: richard at imagecraft.com (Richard Man)
Date: Tue, 12 Apr 2011 21:21:34 -0700
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> <91AB7555-0351-45BB-A8F2-1D7FF81A9F0E@gmail.com> <BANLkTinD4VJng6GG1zjuxgh=wLM-y2bUOQ@mail.gmail.com> <CFAB8639-36A3-4B59-B4BB-9627B9A815DA@gmail.com>

That's not the entire story. It also depends on the distance to subject.

On Tue, Apr 12, 2011 at 3:15 PM, Lluis Ripoll
<lluisripollquerol at gmail.com>wrote:

> Wow!
>
> Thanks Marty...., maybe it would be better never know this ...
>
> cheers
> Lluis
>
>
> El 13/04/2011, a las 0:02, Marty Deveney escribi?:
>
>
>  Yes, Lluis - the Nocti is definitely easier to focus than the Summilux 75.
>>
>> Marty
>>
>> On Wed, Apr 13, 2011 at 6:53 AM, Lluis Ripoll
>> <lluisripollquerol at gmail.com> wrote:
>>
>>> 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
>>>>
>>>
>>>
>>> _______________________________________________
>>> Leica Users Group.
>>> See http://leica-users.org/mailman/listinfo/lug for more information
>>>
>>>
>> _______________________________________________
>> Leica Users Group.
>> See http://leica-users.org/mailman/listinfo/lug for more information
>>
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>



-- 
// richard <http://www.imagecraft.com/>
// icc blog: <http://imagecraft.com/blog/>
// photo blog: <http://www.5pmlight.com>
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Replies: 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?)
Message from lluisripollquerol at gmail.com (Lluis Ripoll) ([Leica] DOF of 80/1.4 at 1.4 slimmer than 50mm at 1.4?)
Message from benedenia at gmail.com (Marty Deveney) ([Leica] DOF of 80/1.4 at 1.4 slimmer than 50mm at 1.4?)
Message from lluisripollquerol at gmail.com (Lluis Ripoll) ([Leica] DOF of 80/1.4 at 1.4 slimmer than 50mm at 1.4?)