Mark_A

Mark_A

Lives in United Kingdom United Kingdom
Joined on Nov 29, 2001

Mark_A's recent activity

  • Different folks have different priorities and desires. No big deal.
  • Pretty outrageous really, first they kill nearly two thousand Gazans and injure many thousands more and now they think they can just carry on with their settlements. Is there no restraint on the ...
  • http://www.reuters.com/article/2014/08/31/us-palestinians-israel-settlement-idUSKBN0GV0D020140831 (Reuters) - Israel announced on Sunday a land appropriation in the occupied West Bank that an ...
  • What makes you think it is oil? It is probably dust! Why not learn how to clean your sensor, you will have to do it at some point unless you intend to send it back to Nikon every time. I clean my ...
  • I have also been thinking about this. If I want detailed information on Nikon bodies or lenses I go to the Nikon website. But when I want to buy I have to search loads of dealers online and if I ...
  • Replied in Very sad ..
    Don't worry, no offence taken, very sorry to hear about your losing your mother. Mark A
  • Replied in Very sad ..
    He had a lot more to give, he had a lot more years in him, he had more time with his wife, with his kids .... with his audience .. It isn't a comment on your mother to say that Robin Williams's ...
  • Replied in Very sad ..
    Very sad, what a waste.
  • Replied in Thing is:
    1) There is a pro digital talk forum on here which is where most of the pros hang out. If you can't find your way there to post your question why should they come here to answer you? 2) If I was a ...
  • While I don't disagree, I would just comment that zoom lenses can ingest dust when they are zoomed because they have to equalise the air inside their volumes. However, mainly to say, cleaning your ...
  • It does not matter Nikon or Canon, if you buy a DSLR you will at times have to clean it. It isn't hard to clean a dslr and in many ways it is better than a fixed lens camera. If you get dust or ...
  • It is quite common for new cameras to have a little dust in them. Just give it a clean and don't worry about it. Mark A
  • If I am going out on a photo opp I like to take just one lens and then do what I can with that. If I am going on holiday or something I may take all 5 of my lenses with me but on trips from that ...
  • Hi Ed, I can't claim to understand the circle of confusion, despite having read up about it some time ago. But does it really have a lot to do with apparent DOF comparing a crop sensor camera to a ...
  • Thanks for that, that does make sense.
  • That is interesting. And makes sense to me. So perhaps a reason people argue that you get shallower dof with FF is that you have to be closer to your subject to fill the frame (lens focal length ...
  • Yes, say with an 85mm prime lens, at F4 and the same distance to the subject. Take a APS-C image and a FF image. Then say the crop image is 6mpx and the FF 12mpx, crop out the 6mpx centre of the FF ...
  • But surely a crop section of a FF chip is in exactly the same position as a crop sensor so magnification and framing within that crop section of a FF chip would be identical to a crop sensor.
  • Oh, sorry, I don't want to rehash a well done debate. :-) It just doesn't seem to make sense to me atm. Surely a crop of a FF image should be the same as a crop image!
  • I am told FF has more narrow depth of field than crop cameras at the same f- stop. Is this true? If I take a shot with both at the same f-stop, would cropping out the middle of the FF shot not give ...
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