Comments made by johnriley - Page 948

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Macro lenses are usually excellent regardless of make. All the Pentax ones are very fine lenses, so you have little to lose and everything to gain.

Comment by johnriley posted on K mount micro lense at 11/04/2012 - 23:05

Already covered in another thread.

Comment by johnriley posted on Pentax price hike? at 11/04/2012 - 23:01

The judge has already defined the time, so I don't see what the problem is.

Comment by johnriley posted on Discussion for Fortnightly competition # 90 : Simplicity at 11/04/2012 - 15:00

A prime lens is a single focal length. In terms of design it could have a larger open aperture, to assist with low light photography. It could be made very compact, to reduce the weight and bulk carried. It could be higher optical quality than a zoom, to facilitate the production of very loarge images.

Or a combination of these features, mixed to suit the purpose of a particular lens.

Comment by johnriley posted on What is the use of a prime ? at 11/04/2012 - 14:59

http://www.thefoxisblack.com/2012/04/09/pentax-k-01-the-best-and-coolest-camera-...

Comment by johnriley posted on The Best and the Coolest.... at 11/04/2012 - 13:48

Oh I see. Well, as the adapter is going to mean manual focus only there seems to be quite a bit of potential there. Also bear in mind the 5.5x crop factor, so it may be that a 35mm Macro (200mm equivalent approx) could be as far as we need to go. A 100mm macro would have an equivalent angle of view as a 550mm, which for a macro lens would be very unusual!

Comment by johnriley posted on K mount micro lense at 11/04/2012 - 13:19

Drastic underexposure will just give you noise in the shadows if you try and bring out any detail. The purpose of the +1, +2 and +3 exposures is to record shadow detail properly and avoid that noise.

Comment by johnriley posted on HDR setting or exposure bracketing at 11/04/2012 - 13:13

This was one of the first: https://www.pentaxuser.com/photo/user-5/witley-court-43708

Apart from the most recent image of the cat, there's a block of Q images in my portfolio, mostly with the fish-eye lens. I have added a tag anyway, but just scroll through my recent uploads and you'll be looking at Q images.

Comment by johnriley posted on how many Q owners? at 11/04/2012 - 08:42

There isn't a macro lens as yet, but maybe extension tubes will be a future possibility. Of course once the Adapter K for Q is available then any K mount lens that's suitable could do the job.

Close up lenses may be an alternative for now.

Comment by johnriley posted on K mount micro lense at 10/04/2012 - 23:11

7 shots at different exposures (-3, -2, -1, 0, +1, +2, +3) combined in Photomatix.

Comment by johnriley posted on HDR setting or exposure bracketing at 10/04/2012 - 23:08

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