Archived posting to the Leica Users Group, 2004/10/15

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: [Leica] Digital "crop factor"
From: brianhome at linkus.net (Brian Sledz)
Date: Fri Oct 15 05:17:44 2004

I think I understand what you are saying. ;-]  The 50f2 on the E1 fills the
same percentage of the image receptor as the 100mm on a 24x36 image
receptor, BUT doesn't the 50mm f2 have more DOF than the 100mm on the 24x36?
I agree that 150 is a beauty, the E1 lenses are all very good, IMO.
Brian

> From: "B. D. Colen" <bdcolen@earthlink.net>
> Reply-To: Leica Users Group <lug@leica-users.org>
> Date: Thu, 14 Oct 2004 21:57:14 -0400
> To: "'Leica Users Group'" <lug@leica-users.org>
> Subject: RE: [Leica] Digital "crop factor"
> 
> The lack of really fast lenses is a problem. But don't forget, the 50 f2
> (which acts like a 100, IS a 50 f2, and at f2 gives you the isolation at
> a "magnification" of a 100 portrait lens that a 50 gives you at f2 -
> which isn't bad. Try the new 150 (300) f 2 - Great portrait lens...;-)
> 
> -----Original Message-----
> From: lug-bounces+bdcolen=earthlink.net@leica-users.org
> [mailto:lug-bounces+bdcolen=earthlink.net@leica-users.org] On Behalf Of
> Brian Sledz
> Sent: Thursday, October 14, 2004 6:07 PM
> To: Leica Users Group
> Subject: Re: [Leica] Digital "crop factor"
> 
> 
> But if you are shooting with the E1, which I did, the only fast lens is
> the 50mm f2 macro which is great lens but also "crops", "acts" and or
> pretends to be a 100mm in 35mm terms.  I found the pictures to be great
> right out of the camera, but I couldn't use that subject isolation like
> one can get with the 35mm slux or even the 28 summ wide open.  With the
> E1 you are shooting a 14mm f2.8, which seems to have gobs of DOF, stop
> it down and the pics can take on a good digital point and shoot. Of
> course I did like the reverse of that, using the 200mm f3.5 (400mm) zoom
> was handy for wildlife and sporting events. Brian
> 
>> From: "B. D. Colen" <bdcolen@earthlink.net>
>> Reply-To: Leica Users Group <lug@leica-users.org>
>> Date: Thu, 14 Oct 2004 16:53:09 -0400
>> To: "'Leica Users Group'" <lug@leica-users.org>
>> Subject: RE: [Leica] Digital "crop factor"
>> 
>> Speed isn't an issue with the crop factor - coverage is. Your 35 lux
>> on a camera with a 1.5 crop factor is still a 1.4 lens - but it's a
>> 52.5. There's no doubt about that being a PITA. But it's also reality.
> 
>> And the reality of a 35 mm sensor also carries with it draw backs for
>> those who shoot fast and often - and that has to do with file size and
> 
>> storage on cards. If you're shooting at a leisurely pace, and aren't
>> filling up cards, it's not an issue.
>> 
>> And, no, if one is shooting with the Olympus E-1 system, which has its
> 
>> own lenses, there's no crop factor to worry about. But there is the
>> problem of needing all new lenses. ;-)
>> 
>> -----Original Message-----
>> From: lug-bounces+bdcolen=earthlink.net@leica-users.org
>> [mailto:lug-bounces+bdcolen=earthlink.net@leica-users.org] On Behalf
>> Of Douglas Herr
>> Sent: Thursday, October 14, 2004 4:44 PM
>> To: Leica Users Group
>> Subject: RE: [Leica] Digital "crop factor"
>> 
>> 
>> "B. D. Colen" <bdcolen@earthlink.net> wrote:
>> 
>>> Excellent point, Frank. I think all this crop factor talk comes from
>>> the fact that the 35 mm format has been so ubiquitous that it is the
>>> only format most people know - and therefore those marketing digital
>>> cameras feel they have to provide a comparison of their formats to
>>> 35.
>> 
>> Or perhaps because the cropped format only uses a portion of the image
> 
>> circle produced by existing lenses.  If you're starting from scratch
>> with a totally new system then the crop factor is meaningless but if
>> you like the speed and angular coverage of your 35 'lux ASPH the crop
>> factor is a PITA.
>> 
>> 
>> Doug Herr
>> Birdman of Sacramento
>> http://www.wildlightphoto.com
>> _______________________________________________
>> 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
> 


Replies: Reply from bdcolen at earthlink.net (B. D. Colen) ([Leica] One more FS item...)
Reply from jbcollier at shaw.ca (John Collier) ([Leica] Digital "crop factor")
In reply to: Message from bdcolen at earthlink.net (B. D. Colen) ([Leica] Digital "crop factor")