This is another one of those things that is typically minor when it is not just plain inaccurate. Unless one has every prime possible with them, one cannot achieve the same things with a prime. In some cases, it is next to impossible to change lenses even if one wanted to.
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Zoom with (how many) feet?
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Moti
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Zoom with your feet
Moti
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Yes, his posts here are textbook him.
Mackiesback
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After reading this, I had visions of the absurdity of someone whipping out a printed spreadsheet with all the calculations the OP asked about, staring at it for a few minutes, and finally coming to the conclusion that they need to step two steps backward, rather than just trying it in less than 2 seconds.
Mackiesback
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That's kind of insulting, and Lee Jay certainly doesn't exhibit any behavior unusual to most of the rest here. This thread is a perfect example. A question about whether "zooming with your feet" can be figured in a calculation, which is followed by pages of "I" and "me". You see it all the time, people typing 2000 words of what works for them, well....great, that wasn't the original question.
Mackiesback
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I think with a lot of today's high MP bodies, people have the option of bringing a prime that seems slight wider than necessary and handle the zooming though PP cropping.
Unless one is cropping significantly, and thus negating the resolution advantage entirely, the results are not going to be the same.
And doesn't cropping, thus reducing resolution, pretty much negate the idea of higher quality image with a prime anyway?
And all of this presumes one knows exactly what one's subject, position and and all other shooting conditions will be. Which might be how some people shoot, but certainly not how everyone shoots and, I would wager, not how most people shoot.
Almost everyone who shoots with a prime lens does a certain amount of "zooming with their feet" which, naturally, gets them closer or further away from their main subject.
Just the same, no matter how close or far away from their main subject a photographer gets, they can't change the angle of view.
A 35mm lens will always be a 35mm lens and will always produce a 35mm angle of view.
There's no mathematical calculation that allows a person to change a 35mm angle of view to a 50mm angle of view by moving 3-feet closer to the subject.
confused circle
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Fortunately the iq advantage is never inaccurate. For every lens ever made, the combined iq of every prime will exceed that of that combined for every zoom. There is no way to guarantee better construction, alignment, and individual parts quality of a zoom over a prime.
And if one does not shoot at every potential focal length with a zoom, it is not necessary to have every single prime possible. And if very minor differences in focal length are immaterial to shots, which is what they are, then it again is unnecessary.
These would be the same cases where repositioning yourself, recomposing, and zooming as prescribed as the right way to use a zoom would also be impossible.
Patently ridiculous. At most one can say using the same technologies and design skills, a prime would outperform a zoom at that focal length. Practically speaking, though, the image quality difference between a good prime and a good zoom is negligible at best.
Strained argument. Limiting oneself is a choice, not a superior position and doesn't challenge the utility of a zoom. I primarily shoot with a UWA zoom of limited range. (17-40 of equivalent) Primes would be stupid in my case as I am often in precarious positions with little or no ability to swap lenses and often a limited range of movement.
I'm not even sure your point. A zoom offers more flexibility with a negligible quality difference. Use them or don't, but can we dispense with the primeval thinking of the superiority argument?
And, to the point of this thread; zoom with your feet is an incredibly ignorant statement.
It's the "if you knew how to use a zoom properly, you wouldn't be a prime user" talk that he likes to tout that gets old. You can always count on someone to say that in these threads.
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hotdog321
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Gotta steal this! Don't be surprised when you see it posted in the future.
Zoom with your feet
Moti
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fishy wishy
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Does it really matter? Because this information is not necessarily practical use to you.
More useful is to memorise a handful of angular field of view for focal length. Then you will be able to well estimate what you'll get by whipping out a prime. If you're standing at a scene and realise you need 70 degrees coverage, you will know your 50mm is not going to cover it unless you move back a lot, and if it's far in the distance this might not be achievable.
OK, really? In the field, who does this? I take a lens or two for what I think I might encounter in a give area and what I intend to try to capture, if that is applicable. As I approach something I wish to shoot, I've an idea which lens I'll use but I have no idea what actual angle of view any of my lenses have. But I do have experience in what they'll do visually. I use experience to understand what my lenses will do. This is the same experience I use whether it is with a prime or zoom.
Commercial location work is a different thing, and for that I use apps to get a more precise idea. But no need to memorise.
Knowing the lens angle is for naught if one doesn't also know the shooting location angles as well.
yardcoyote
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I think of each of my lenses as an eye, and i know what each eye "sees". That's it. No need for math.
TacticDesigns
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+1
Which is what I think the zoom with your feet is meant to mean.
Rather than zoom to get your subject big, walk to where you know the perspective will work well, and then choose the lens for that perspective.
But that means doing a lot of walking to learn what lens to use.
Take care & Happy Shooting!
Mackiesback
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As an example, when going to the racetrack, I used to bring my 80-200 and my 300 with teleconverters, back when shooting a D700. Since getting the 810, instead of using teleconverters and cutting light from the 300, I just crop to taste. With 36mp, and now the Z7 and 850 in the 45mp range, that is a lot of latitude for cropping and still maintaining excellent quality.
When walking around, say, NYC, I will carry my Sigma 24 Art rather than the 35, because the 24 does better with interiors, especially things like church domes, where I can crop exterior shots to taste, flexibility the 35 doesnt give.
And no, I don’t notice image degradation nor do I feel I am negating the quality of my primes. It’s not like cropping a 24mm view to a 28 or 35 is a huge deal. I carried the tank like Nikon 24-70 around for years, and the quality of a cropped Sigma Art image is still better.
And I really don’t care how most people shoot. It has no relevance to what I am doing.
Right. With fast primes, though, you can change the subject isolation far more than typical with a zoom (or the zoom weights 3 lbs. lol) . There is always a tradeoff ...
There are only two reasons left to own primes, in my opinion:
- Fast apertures not available in zooms.
- Focal lengths not available in zooms.
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Lee Jay
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As I told you the last time you made this wrong claim, you know nothing of either whom or what you speak.
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