35 vs 50 vs 24

[leica1215]

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Just try it out with these 3lens, I personally feel 24 3steps closer can be 35, and 35 2 step close can be 50

 

I didn't do side by side picture comparison, are there any differences ?

 

I can use 50 and step back 2steps become 35, and 3steps more become 24

 

 

 

 

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[a.noctilux]

You discover "Zoom with your feet", a sort of...

http://www.apogeephoto.com/june2010/jaustin62010.shtml

 

 

Regards,

 

Arnaud

[LocalHero1953]

You've just saved yourself about £7000. What are you going to spend it on?

[sml_photo]

It's not just what's in the viewfinder....it's also the inherent perspective of each lens. 

I think you'd find they are different.

Having said that, you'd probably like any or all of them...I do.

[zlatkob]

Just try it out with these 3lens, I personally feel 24 3steps closer can be 35, and 35 2 step close can be 50

 

I didn't do side by side picture comparison, are there any differences ?

 

I can use 50 and step back 2steps become 35, and 3steps more become 24

 

 

 

The angle of view is very different between those 3 lenses.  A flat object may be the same size, depending on how many steps you take, but a 3-dimensional scene will look very different.  A distant background will be much, much wider with a 24mm than with a 50mm no matter how many steps you take.

[semi-ambivalent]

The angle of view is very different between those 3 lenses.  A flat object may be the same size, depending on how many steps you take, but a 3-dimensional scene will look very different.  A distant background will be much, much wider with a 24mm than with a 50mm no matter how many steps you take.

Also important, your distant background will be 'more distant'. This is a 'failure' of the RF technology. One can teach one's eye to adapt but you must teach it. Call it a trade-off for seeing 'more' than does an SLR. Sometimes.

 

s-a

[Jeff S]

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It's not just what's in the viewfinder....it's also the inherent perspective of each lens. 

 

 

Field of view.....perspective changes with one's feet, not FL.  But, yes, as one tends to use a particular FL closer to or more distant from a given subject, then perspective will change.

 

Jeff

[tobey bilek]

Size difference between near and far objects is a function of focal length.  

 

You can not get it by moving near or far.

[pico]

When I use only one lens, which is most of the time, my movements in real life tend to put me into the correct position.

.

[pop]

Size difference between near and far objects is a function of focal length.  

 

You can not get it by moving near or far.

Not quite.

 

The apparent size difference between things depends only on their respective distances from yourself or your lens. 

 

The focal length determines the angle of the view you can see. A wide angle lens provides - er - a wide angle. A tele lens provides a narrow angle.

 

Put two flower pots or vases or cups of the same size on a table, one at arms' length distance and one at one and a half meter. Crouch or sit on a thick cushion so that you see both from the front at the same apparent height. Now move two meters back. Observe the apparent sizes of the pots or cups or whatever. Now go close to the table and observe again. That's perspective, and it's determined by your position with respect of the cups or things. 

 

The lens, on the other hand, will just show more or less of the same room, provided you don't move within the room. 

[darylgo]

If a 50mm is used to stitch two images, what perspective would result?

 

To the OP, that might save you 5 steps :-)

[edwardkaraa]

Size difference between near and far objects is a function of focal length.

 

You can not get it by moving near or far.

Actually it's the exact opposite. You can get telephoto style compressed perspective with a wide angle lens by cropping.

[Ernstk]

Actually it's the exact opposite. You can get telephoto style compressed perspective with a wide angle lens by cropping.

Hmmm. That doesn't sound right to me.

 

I've never seen perspective compression from a telephoto lens being produced by a wideangle lens.

 

Ernst

[edwardkaraa]

Hmmm. That doesn't sound right to me.

 

I've never seen perspective compression from a telephoto lens being produced by a wideangle lens.

 

Ernst

Easy, take a wide angle shot and crop it to the same FOV of your favorite telephoto lens.

[Jeff S]

Easy, take a wide angle shot and crop it to the same FOV of your favorite telephoto lens.

 

Taken from the same location will result in exactly the same perspective.

 

http://www.digitalcameraworld.com/2014/08/15/debunking-the-myth-that-focal-length-affects-perspective/

 

Jeff

[Herr Barnack]

You can "zoom with your feet," but there is far more to it than just what shows up inside your frame lines.  A long lens pulls background elements closer, giving them more prominence while cropping out nearby subject matter.  A short lens does the opposite.  No one prime lens can do everything. 

 

Sometimes you can't zoom with your feet - not without moonwalking off a cliff or stepping out into traffic flow.  JMHO, but I'd rather spend my money on M lenses than reconstructive surgery, schedule III narcotics, hospital bills and rehab therapy. 

[Jeff S]

Easy, take a wide angle shot and crop it to the same FOV of your favorite telephoto lens.

 

Only if you change camera position....otherwise the same.  I bet you haven't tried it.

 

Jeff

[edwardkaraa]

Only if you change camera position....otherwise the same.  I bet you haven't tried it.

 

Jeff

I'm surprised you guys are not aware of this basic pronciple.

 

I'm going to explain it differently.

 

Let's say you shoot a scene with a 24mm lens on a 24x36 sensor. The lens is a wide angle with the corresponding exaggerated subject to background perspective.

 

Now crop the image to an equivalent of let's say 2x3mm sensor. Now that's a substantial crop, but just to explain my point. The 24mm lens is now equivalent to a 300mm lens on 24x36, with the corresponding flattened subject to background perspective.

 

The opposite is true. You take the same lens and you shoot with it on a 40x50mm sensor, and the 24mm provided the image circle can cover the format becomes an ultra wide angle with much more exaggerated perspective.

 

Elementary stuff.

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[Peter H]

I suppose the confusion arises because in order to get the same amount in the frame with a long lens and a wide angle, you have to change your position relative to the subject (step, walk, catch a bus, depending on the focal lengths in question) and that shift, not the focal length itself, then alters the perspective. The focal length generally influences your position relative to the subject though, which is why the photos do often end up looking different, and causing the confusion.

 

Those photos with huge moons in the background taken with telephoto lenses absolutely can be replicated with a wide angle lens but you'd have to make such a drastic crop of the wa lens image that the quality would suffer substantially if not irredeemably,  and that, aside from convenience and safety considerations is why lenses of different focal lengths are necessary.

[Jeff S]

I'm surprised you guys are not aware of this basic pronciple.

 

I'm going to explain it differently.

 

Let's say you shoot a scene with a 24mm lens on a 24x36 sensor. The lens is a wide angle with the corresponding exaggerated subject to background perspective.

 

Now crop the image to an equivalent of let's say 2x3mm sensor. Now that's a substantial crop, but just to explain my point. The 24mm lens is now equivalent to a 300mm lens on 24x36, with the corresponding flattened subject to background perspective.

 

The opposite is true. You take the same lens and you shoot with it on a 40x50mm sensor, and the 24mm provided the image circle can cover the format becomes an ultra wide angle with much more exaggerated perspective.

 

Elementary stuff.

 

So basic that it's clear you haven't done it.

 

When you crop, you change field of view, you don't change focal length (it's constant regardless).

 

Perspective, i.e., relationship between near and far objects, is exactly the same on a cropped pic from the same position.  Perspective only changes if YOU change positions.

 

Now go try it....I have.

 

Jeff