Archived posting to the Leica Users Group, 2000/05/18

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Subject: Re: [Leica] "Quick" DOF calculation
Date: Thu, 18 May 2000 09:22:23 EDT

In a message dated 5/18/00 6:05:02 AM, writes:

>Actually, I have a tiny Excel spreadsheet that I made to use exactly this
>formula. Works great! Like, for streetshooting, I can figure out just how
>good my guesstimating has to be on the 35 wide open at ten feet... something
>you definitely CAN'T do from a DOF scale.

Hmm, figuring depth of field for "street shooting" with a 35mm lens wide 
open? Guesstimating focus? Hmm? I'm sorry I don't get it? Are you shooting 
secret photos at night on the street? Is it dark? Is that why you're shooting 
wide open? No? You want limited depth of field and that's why you're shooting 
wide open? Why not just focus then rather than guesstimate? And this 
spreadsheet, what's up with that? Do you take your laptop along and calculate 
your depth of field so you can guestimate? Wouldn't it be simplier (and less 
noticeable) to just focus? I know I sound like I'm trying to be a jerk but 
I'm really not (or at least I don't think I am). I just don't understand. I 
admit I'm not well versed in "street shooting" but usually if I'm worried 
about depth of field I stop down a bit. When I want to buzz a background I 
focus on the subject (I don't use a 35mm lens either). But hey, I'm kinda 
simple this way . . .

Bob (thought he understood depth of field) McEowen

Replies: Reply from "AWSteg" <> (Re: [Leica] "Quick" DOF calculation)