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Questions tagged “lenses”

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

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2

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350

How do you measure the true f-number of a lens when the aperture is behind lens elements?

f-stop leaf-shutter lenses aperture optics

Peter M

1mo ago

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2

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457

Is there a general formula for the focus distance markings on a manual-focus lens?

app-design lens-design lenses focus-distance manual-focus

Peter M

1y ago

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2

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320

How were early CinemaScope anamorphic lenses designed, and how did later anamorphic systems differ?

anamorphic lenses cinematography cinemascope optics

uhoh

1y ago

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2

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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

0

votes

2

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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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2

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292

What is a 12mm M12-mount industrial lens used for?

m12-mount field-of-view lenses machine-vision industrial-lenses

TOWIN

1y ago

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2

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464

Which improves image quality more: a higher-megapixel sensor or a better lens?

lenses buying-advice camera-bodies megapixels image-quality

3Cee

1y ago

0

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2

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463

Does Micro Four Thirds’ 4:3 aspect ratio make lenses meaningfully smaller than 3:2 formats?

lenses micro-four-thirds aspect-ratio full-frame sensor-format

IsAGuest

1y ago

0

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2

answers

553

What is the centre of perspective in a photograph, and why does it matter?

theory perspective composition lenses optics

Tom Axford

1y ago

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2

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467

What does “18x” mean on a clip-on smartphone telephoto lens?

magnification lenses optics telephoto smartphone-photography

Orion's Belt

1y ago

0

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2

answers

358

Does using a full-frame lens on a DX/APS-C body improve image quality?

lenses full-frame aps-c dx image-quality

ozymandias1324

1y ago

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2

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241

Why can mirrorless cameras autofocus with very slow lenses like f/11 or f/16?

autofocus lenses mirrorless teleconverter phase-detection

xenoid

1y ago

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2

answers

250

Is a Nikon D3200 a good beginner camera, and which lenses should I start with?

nikon lenses dslr d3200 beginner

DottyB

1y ago

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2

answers

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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2

answers

495

Why do zoom rings turn in opposite directions on different lens brands?

nikon canon lenses lens-controls zoom-lenses

Pusztai Balazs

1y ago

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2

answers

578

Sony ZV-E10: should I buy the E 55-210mm zoom or the FE 50mm f/1.8 for portraits and everyday use?

lenses sony-e-mount zoom-vs-prime zv-e10 portraits

Geee

2y ago

0

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2

answers

249

Why can’t a variable-aperture zoom like 18-140mm open wider at the short end?

nikon lenses aperture f-number zoom-lens

Saurav Majumder

2y ago

0

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2

answers

258

Which lens should I use to photograph skateboarding with a Minolta SRT101?

skateboarding sports-photography lenses minolta film-photography

Zissouu

2y ago

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2

answers

240

Why does my Sony/Zeiss 24-70mm look blurrier at f/4 than at f/22?

sony lenses aperture zeiss sharpness

devlopp

2y ago

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2

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398

Which lens types fit a Canon 5D Mark II and cover full frame?

lenses full-frame compatibility canon-ef used-gear

Marcel

2y ago

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