Questions tagged “lenses”

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

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174

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

app-designlens-designlensesfocus-distancemanual-focus

Peter M

10mo ago

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134

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

anamorphiclensescinematographycinemascopeoptics

uhoh

10mo ago

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131

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

perspectivelensesaperturebokehfocal-length

Anushka_Grace Chattopadhyay

11mo ago

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701

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

lensesopticsphotography-basicsfocusfocal-length

Tom Axford

1y ago

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151

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

m12-mountfield-of-viewlensesmachine-visionindustrial-lenses

TOWIN

1y ago

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276

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

lensesbuying-advicecamera-bodiesmegapixelsimage-quality

3Cee

1y ago

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197

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

lensesmicro-four-thirdsaspect-ratiofull-framesensor-format

IsAGuest

1y ago

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220

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

theoryperspectivecompositionlensesoptics

Tom Axford

1y ago

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2

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235

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

magnificationlensesopticstelephotosmartphone-photography

Orion's Belt

1y ago

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2

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161

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

lensesfull-frameaps-cdximage-quality

ozymandias1324

1y ago

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139

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

autofocuslensesmirrorlessteleconverterphase-detection

xenoid

1y ago

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160

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

nikonlensesdslrd3200beginner

DottyB

1y ago

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2

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637

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

lensesimage-formationopticsfocusfocal-length

Bram

1y ago

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228

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

nikoncanonlenseslens-controlszoom-lenses

Pusztai Balazs

1y ago

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282

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

lensessony-e-mountzoom-vs-primezv-e10portraits

Geee

1y ago

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120

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

nikonlensesaperturef-numberzoom-lens

Saurav Majumder

1y ago

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2

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92

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

skateboardingsports-photographylensesminoltafilm-photography

Zissouu

2y ago

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2

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99

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

sonylensesaperturezeisssharpness

devlopp

2y ago

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217

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

lensesfull-framecompatibilitycanon-efused-gear

Marcel

2y ago

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114

How should a beginner choose their next lens for a Canon R50?

lenseslens-choiceaps-ccanon-r50beginner

Jonathon Isola

2y ago

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