DOF and Cropping take 2

Started Feb 11, 2014 | Discussions thread
awaldram Forum Pro • Posts: 13,243
Re: DOF and Cropping take 2

Ian Stuart Forsyth wrote:

awaldram wrote:

"Note that the above calculator assumes that you have a lens on the new sensor (#2) which can reproduce the same angle of view as on the original sensor (#1). If you instead use the same lens, then the aperture requirements remain the same (but you will have to get closer to your subject)."

Again exactly what I've been saying

So why would you interject in a conversation about the Equivalence between the formast in the discussion with GossCTP stating “that a FF F4 at 200mm is equivalent to a cropped 135 F2.7”

Because he was making statements that were unsure and based on a wrong premise your replies of  'perfect' it wasn't fair to GossCTP or any readers.

His statements were based of previous response by me and you so I didn't interject in my mind but was already involved in the conversation

And then you state

“But I Don’t see this as equivalent at all.”

Well even the site you provided see that they are equivalent here’s their calc

So if your site you provided see it as equalling then why interject.

I don;t see it as equivalent

As I explained whats important to me is shutter speed ,ISOt he equivalence is DoF and in my shooting useless.

I would never go from an f2.6 lens on aps-c to f4 on FF just to maintain DoF the concept is alien and redundant.

I feel as if you have a vague notion on how this work and your attempts at being vague is there to twist your posts to what is true at the end of the day .

Mmm interesting interpretation I don't think I've been vague at all nor changed my approach or 'facts' rather I think You and MC have chosen to be very selective on what you read what you quote and how you attempt to ridicule.

You do this because your insecure in your FF purchases and are seeking approval from others by beating the FF is best despite the obvious fact nobody cares.

let be really clear

DoF Equivalence is pointless a waste of time and shows nothing of any interest to a photographer of any format.

The only possible reason you;d bring it up again and again is to show you can shoot at a narrower DoF on FF than you can on APS-c with production lens... to which my answer is as always so what.?

Most people have to much DoF .!

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