All Forum Comments
Comment by johnriley posted on DFA 100MM 2.8 macro at 21/03/2012 - 23:26
Comment by johnriley posted on Weekly Competition #245 - Childhood Memories at 21/03/2012 - 23:09
My feeling is we are all capable of doing our own searches, but of course BIN items are another matter altogether, and in any event it's down to the established etiquette that members tend to follow.
Comment by johnriley posted on Sigma 100-300 F4 at 21/03/2012 - 22:58
Comment by johnriley posted on DXO test some Pentax Lenses at 21/03/2012 - 14:11
So, a portrait lens might be softer wide open and critically sharp when stopped down. A macro lens we assume is critically sharp from the start and also has a flat field for copying purposes. An architecture lens should be as near rectilinear as possible. And so on.
My 18-135mm, for example, has high MTF20 scores and lower MTF50 scores, and sure enough it has wiry, contrasty detail, but a macro lens it isn't. If you read some tests you wouldn't buy it, but if you are aware of its characteristics it might suite you very well.
The 70mm Limited is a lovely portrait lens, just the right length and with beautiful rendering. I'm not too concerned about how it reproduces test charts....
Comment by johnriley posted on DXO test some Pentax Lenses at 21/03/2012 - 12:50
My feeling is that you don't need any accessories at this point, what you need is a supply of interesting subjects. Spend the money on going places, take lots of pictures and anything you need will become apparent as you go.
Have fun on the journey!
Comment by johnriley posted on Finally taken the plunge at 21/03/2012 - 12:43
Those who want the K-01 will buy it with confidence I suspect, others will stick with the DSLR range.
Personally I am happy with my DSLRs and the Q, which are used in quite different situations. So there's no imperative to buy a K-01. When our backup K20D finally dies I may consider it as the backup camera.
Comment by johnriley posted on K-01 user feedback at 21/03/2012 - 11:49
Comment by johnriley posted on Sigma 100-300 F4 at 21/03/2012 - 11:45
Comment by johnriley posted on AK-TTL Radio Wireless TTL flash trigger at 20/03/2012 - 15:21
2. No point in having a zoom lens and only using the widest focal length. Use the appropriate focal length for the image to require.
3. No, they are unsharp in general, but passably useful when the lens is stopped down. But the cost is IMHO a bit of a waste of money.
4. Wide angle zooms are very complex designs, so if you want the best results, buy the best.
5. I don't believe there is any such beast as a walk around lens. How would you anticipate what will occur in front of you and will your camera be poised for it? Highly unlikely. Pictures generally are made by the photographer, not by events circling round us.
Comment by johnriley posted on True Fish eye lens (10/12mm)- a few questions at 20/03/2012 - 15:17

