Alley in Pisa, Italy

by Lars Kotthoff

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1
vote
2answers
210 views

Can I adapt a Sigma SLR lens made for Pentax K mount to a Nikon DSLR camera?

I now have a Nikon D3200 and the lens is not great. Can I adapt my Sigma Aspherical IF 28-300mm zoom lens, which I'm currently using on a Pentax MZ-30?
2
votes
1answer
106 views

Signal:noise ratio not really decreasing with ISO for Pentax

In SNR graphs for Pentax K-30 and Pentax K5 there is something I do not get. For ISO after 1600 the SNR doesn't really decrease. Moreover comparing with Nikon D3200, we can clearly see that until ISO ...
-1
votes
1answer
684 views

Which DSLR is better for an entry-level photographer (2013)? [duplicate]

On my question, I would really appreciate if you can give me pieces of advise on whether which DSLR I'm going to pick. I'm really a total beginner. Please consider the following factors: Ease of ...
24
votes
1answer
9k views

What are the differences between E-TTL, i-TTL, and P-TTL?

Canon, Nikon and Pentax each have their own TTL flash metering systems, respectively E-TTL, i-TTL, and P-TTL. They all use a weak preflash that is metered and used to calculate flash power level ...
16
votes
2answers
3k views

Why do some professional cameras have dual memory card slots?

I have noticed that some cameras such as the Nikon D300s, Canon EOS 1D Mark IV, or Pentax 645D have dual memory card slots. What is the purpose of having multiple memory card slots and why would you ...
7
votes
5answers
7k views

Is there a Canon equivalent of the Nikon D3100? If so, what is it?

I am looking to buy an Entry level DSLR, and had decided on Canon system due to lens availability with friends, and general popularity amongst my peer group here. I am planning on general ...