How do zoom shooters actually calculate their shots?

Started 2 months ago | Discussions thread
jtr27
jtr27 Veteran Member • Posts: 3,297
Re: A few thoughts on that…
5

Tuonov2 wrote:

deednets wrote:

Tuonov2 wrote:

deednets wrote:

So how do you - as a zoom shooter - "calculate" any of the above shots?

Mini-challenge??

Deed

In exactly the same was as you would calculate for a prime, is there any other answer?

A bit too simplistic. My original post wasn't about using a zoom at an EXACTLY the same focal length as a prime, but using it as a framing tool. Like you stand in front of a group of people and then crop by zooming.

Deed

It really is that simple, if you care that much about having your DOF calculated to the nearest mm you have three variables to consider, focal length, aperture and subject distance. Those variables don't change whether prime or zoom, the calculations are the same.

Threads from certain posters somewhat predictably devolve in this manner.  Often it begins with an arcane, abstruse, poorly-worded or irrelevant question (henceforth referred to here as a "silly" question), and the rest of the thread primarily consists of (1) people trying to answer the silly question as best they can, or ask for clarification as to what is being asked, (2) the OP saying "you didn't answer my question," over and over, without ever connecting the dots and realizing that the question is the problem, not the answers, and (3) a few people quite correctly pointing out that the question was a bit, er, silly to begin with.

The thread balloons to 150 responses and closes out in fairly short order, and nobody feels very good about it, and sometimes the OP stomps off in a huff, never giving much thought to how unsatisfactory answers are often a direct result of unsatisfactory questions.

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