Linked Questions

0
votes
2answers
12k views

What do the lens parameter abbreviations mean? [duplicate]

Possible Duplicate: What do all those cryptic number and letter codes in a lens name mean? Canon EF 50mm f/1.8 II What does EF, II mean? Sigma 10mm/F2.8 EX DC Fisheye HSM compatibil Canon ...
-1
votes
2answers
6k views

What does f/4.5-5.6G stand for on a Nikon Lens? [duplicate]

Can you please explain me what is 4.5 - 5.6G in a lense description.And how it is different from other generation of like 3.5G or 6.5. "Nikon AF-S DX NIKKOR 55 - 300 mm f/4.5-5.6G ED VR Lens"
0
votes
1answer
7k views

What does “OS” mean on a Sigma lens? [duplicate]

I want to buy a Sigma 180mm F/2.8 EX DG Macro OS HSM Sigma. What does EX mean? What does DG mean? What does OS mean? What does HSM mean?
2
votes
1answer
2k views

whats with the nikor lens naming using the letters D + G? [duplicate]

Possible Duplicate: What do all those cryptic number and letter codes in a lens name mean? Nikon 50mm f/1.8D Nikon 35mm f/1.8G what does the D and G distinction mean on these lenses and why ...
1
vote
3answers
473 views

What does it mean when 'HD' is printed on a lens? [duplicate]

Do the two letters mean High Definition? Are they called HD lenses? How do they differ from normal (SD?) lenses? Please include a plenty of details in your answer..
0
votes
1answer
630 views

Nikon lens naming [duplicate]

Possible Duplicate: What does all those parts in a lens name mean? I'm thinking about buying myself a new lens for my Nikon and I have a question about the naming conventions Nikon uses for its ...
0
votes
1answer
914 views

Is the Sigma 18-200 F3.5-6.3 DC Macro compatible with full-frame Nikon DSLRs? [duplicate]

Is the Sigma 18-200 F3.5-6.3 DC Macro lens compatible with the full frame D610?
1
vote
1answer
449 views

How to read lens specs [duplicate]

Can someone help me decipher the specs of a camera lens. Purely for example, I see a lens being advertised as: AF Nikkor 24-50mm 1:3.3-4.5 Wide Angle Zoom What is AF? What exactly does 24-50mm ...
0
votes
1answer
464 views

What is the difference between the AF-S 50mm f1.8G and the AF 50mm 1.8D? [duplicate]

I am curious to know what is the difference between an AF-S and AF lens. What makes AF-S more costly than AF? Is there any difference in image quality ?
-1
votes
1answer
127 views

What kind of lenses will work on an entry-level Nikon DSLR? [duplicate]

I am total noob at cameras/lenses so I don't know what I am buying. My cousin has asked me to bring 70-300mm or 18-300mm lens for his D3300. Now, I don't know what lens will be compatible with the ...
0
votes
2answers
80 views

Wide angle lenses that fit a Rebel T3i [duplicate]

Will a Canon EF 28mm f/2.8 IS USM Wide Angle Lens - Fixed work on a Rebel T3i? What does IS UMS mean?
34
votes
13answers
25k views

Should I buy a camera with kit lens, or body plus lens separately?

I am planning to buy a DSLR soon. Before I zero in on the model, I want to know whether it is advisable to buy a kit (body + 18-55 lens) or not? OR should I go for the camera-body and the lens ...
48
votes
3answers
386k views

What does STM mean on a Canon lens?

The Canon EF 40mm f/2.8 has a designation of STM on the lens. What does this mean? What are the advantages of having it and does it replace an older technology? We have a terminology thread that ...
30
votes
2answers
23k views

What is T-number / T-stop?

Usually, when discussing aperture of a lens, F-stop and F-number are used for quantifying. But some photographers, and especially videographers, also mention T-stop. The concept and numbering used (e....
16
votes
5answers
70k views

What is USM, and what are its pros and cons?

My Canon lenses have the designation USM on them, which I assume is for the same reason that they say "Ultrasonic". What does this mean, and why or why do I not want it?

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