All Forum Comments
Comment by johnriley posted on AF discrepancies at lower zoom levels at 31/07/2011 - 08:37
As for the lenses, start with the two lens kit, which will be very versatile and well priced. WR lenses and K-5 also mean you can explore photography in the rain.
There may be technically better lenses, but all these work well and can produce sharp, vibrant images.
Comment by johnriley posted on Thoughts on K5 kit lenses for noobie to DSLR's at 31/07/2011 - 08:34
However, at the wider end the increased DOF covers up any small focusing errors.
I suspect that there's some other reason for your findings.
Try photographing a newspapoer pinned to a wall. Use a tripod and make sure the camera back is parallel. Fill the frame at the wide angle end and see which text id sharp. Bear in mind though that curvature of field may mean that at wide apertures the centre can be inj focus but not the edges, and vice-versa.
There's no reason to avoid using the wide end of zoom lenses. You might as well have a fixed focal length if this was so.
Comment by johnriley posted on Kr - AF Fine Adjustment at 31/07/2011 - 08:31
Comment by johnriley posted on grrrrrr eBay numpties at 30/07/2011 - 15:38
PayPal exists for those we don't know and offers some prtection.
In terms of business, I accept cash, cheques and PayPal. It's customer service that counts and having too proscriptive a policy can put good customers off. A few well known clients will get billed and will send me payment in due course.
Comment by johnriley posted on Buying and Selling in Classifieds - a word of warning at 27/07/2011 - 19:45
I'm slowly getting into wildlife photography and it is very challenging. Knowing the names of all the creatures is another problem....
Comment by johnriley posted on Merops Apiaster at 26/07/2011 - 20:12
I take my W90 everywhere, and the WG-1 is even tougher!
Comment by johnriley posted on New toy - Optio WG-1 at 26/07/2011 - 18:08
An alternative would be the Pentax 18-135mm, but that's a very expensive alternative.
Comment by johnriley posted on which lens. at 24/07/2011 - 18:55
Rules of thumb are generalised guidelines that are useful in the field and it's important to realise that they are very valuable to beginners. We don't want to confuse beginners with pedantry.
Comment by johnriley posted on Focussing a 55-100mm zoom on a P67ii body at 23/07/2011 - 17:43
The figures I have quoted are from the DOF tables, taken from the Asahi pentax manual, but I would never use those and never have. It's simply not necessary.
I don't have anything more to add.
Comment by johnriley posted on Focussing a 55-100mm zoom on a P67ii body at 22/07/2011 - 22:41


See: https://www.pentaxuser.com/forum/topic/kr---af-fine-adjustment-29444