Archived posting to the Leica Users Group, 2005/06/25

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Subject: [Leica] new Puts article
From: abridge at gmail.com (Adam Bridge)
Date: Sat Jun 25 10:01:24 2005
References: <001001c57926$037b5660$6452c33e@symke> <65280FBD-D7D0-4458-AEEC-1931718FBA6D@btinternet.com> <9b678e050625054040fb9bc9@mail.gmail.com> <42BD59D7.7000409@arbos.net> <42BD6293.4000507@adrenaline.com> <13786F32-A906-4316-9F77-37E76DE5BB7B@earthlink.net>

Wait a minute now. For a given lens the DOF is independent of the
cropping factor of the sensor, right? So if you use existing M lenses
on a digital M with an APS or somesuch chip then the depth of field
will be the same for a given f-stop but the crop factor will still be
in play.

Isn't this right?

I admit that Erwin's article didn't make a whole lot of sense to  me.
I read it once last night and after my mind tried wriggling around all
of it . . . I was confused. Maybe it'll make more sense in the light
of day. But some of the things he was saying didn't seem to match
experience very well.

Oh well . . . light is particles. I'll stick with that.

Adam

On 6/25/05, feli <feli2@earthlink.net> wrote:
> 
> On Jun 25, 2005, at 6:56 AM, Scott McLoughlin wrote:
> 
> >>
> >> I, as an R-D1 user, simply agree to an opinion that digital M
> >> mount cameras should not necessarily be with full size sensors. I
> >> will happily use M lenses designed specifically for the APS size,
> >> if it is chosen as the standard.
> 
> The only thing that bothers me about a sub full frame size chip is
> that it will be difficult to
> achieve the super shallow DOF you can get right now, when shooting
> wide open and close up.
> 
> If i remember correctly a half size sensor, doesn't mean twice the
> DOF at the same stop, because
> it isn't a linear progression. I would be curious to know how big the
> difference really is...
> 
> feli
> 
> ________________________________________________________
> feli2@earthlink.net                 2 + 2 = 4
> www.elanphotos.com
> 
> 
> no archive
> 
> 
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Replies: Reply from bdcolen at comcast.net (B. D. Colen) ([Leica] new Puts article)
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