Questions tagged “focal length”

Ask the Unique Photo creator community — gear, technique, post-processing and more.

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371

How should I fairly compare detail between smartphone cameras with different focal lengths?

smartphones resolution testing focal-length image-quality

Landon Ham

5mo ago

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233

Why can two 85mm lenses give different background blur, and what actually affects perspective “compression”?

perspective lenses aperture bokeh focal-length

Anushka_Grace Chattopadhyay

1y ago

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1423

What is the thin-lens equation, and how is it useful in photography?

lenses optics photography-basics focus focal-length

Tom Axford

1y ago

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238

Is a 300mm lens suitable for photographing horse jumping on a Nikon D3400?

sports-photography nikon-d3400 horse-jumping telephoto focal-length

jlw9406

1y ago

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258

Useful depth-of-field rules of thumb and their limits

depth-of-field aperture photography-basics hyperfocal focal-length

Tom Axford

1y ago

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494

Why can depth of field stay the same while background blur looks stronger with a longer focal length?

depth-of-field background-blur composition aperture focal-length

matej

1y ago

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206

How do wire-frame and sports viewfinders show the correct framing for different lenses?

large-format perspective viewfinder framing focal-length

Daphne Preston-Kendal

1y ago

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1212

How are object distance, image distance, and focal length related in a lens?

lenses image-formation optics focus focal-length

Bram

1y ago

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544

How can I make nostrils appear less prominent in portraits?

lighting perspective portrait posing focal-length

bypass restrictions

2y ago

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1479

Does focal length change perspective, or only camera position?

macro perspective optics thin-lens focal-length

cosaty

2y ago

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261

How do I crop a photo to match the field of view of a longer focal length?

math field-of-view composition cropping focal-length

Daniel Jørgensen

2y ago

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428

How do I calculate the field of view of a 50mm lens on a 1/2.8-inch 720p sensor?

field-of-view video cctv-lenses sensor-size focal-length

Jason C

2y ago

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181

What lens characteristics work best for beauty photography and makeup videos on a Canon M50 Mark II?

canon-eos-m50-mark-ii beauty-photography makeup-video focal-length portrait-lenses

Photography Stack Exchange contributor

2y ago

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247

Is a 35mm f/1.8 lens good for product photography and hotel room interiors?

lenses product-photography interior-photography beginner focal-length

Photography Stack Exchange contributor

2y ago

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249

Does a mirrorless camera need a shorter focal length than a DSLR for the same field of view?

lens-design field-of-view dslr mirrorless focal-length

Photography Stack Exchange contributor

2y ago

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342

Why are telephoto lens designs usually used for long focal lengths, not short ones?

lens-design wide-angle optics telephoto focal-length

Photography Stack Exchange contributor

2y ago

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243

Why don’t 25mm at f/4 and 100mm at f/16 give the same depth of field at the same subject distance?

depth-of-field aperture circle-of-confusion optics focal-length

Photography Stack Exchange contributor

3y ago

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239

Why can an 11mm fisheye and a 16mm fisheye look similar in field of view?

lens-distortion field-of-view fisheye wide-angle focal-length

Photography Stack Exchange contributor

3y ago

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178

Should I add a teleconverter to my 70-200mm or buy a 150-600mm for sports on a Nikon Z6 II?

sports-photography teleconverter nikon-z focal-length sigma-lenses

Photography Stack Exchange contributor

3y ago

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235

How do I convert the Panasonic FZ70's zoom factor to focal length for the 500 rule?

bridge-camera astrophotography panasonic focal-length zoom

Photography Stack Exchange contributor

3y ago

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