Comments made by johnriley - Page 186

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RAW files actually do quite a bit of processing, unbeknown to us. They correct for lens defects more often than we might surmise. Not so much on DSLR lenses, but CSC lenses are something else.

Comment by johnriley posted on this will be intresting at 25/05/2016 - 22:15

It's a matter of supporting the AF function. The converter will presumably be MF only on the K-x.

Comment by johnriley posted on K-x and the HD Pentax-DA AF Rear Converter 1.4x AW at 25/05/2016 - 14:40

It's the same argument we've had pver FF. It should be something special. As it turns out, it was. I guess give it time and when it makes commercial sense it will happen.

Comment by johnriley posted on New K-70 and 100-300 f4 on way at 25/05/2016 - 10:48

Subject movement, camera movement, atmospheric conditions.....there are all sorts of things that make ultra-telephoto shots difficult. Your 450mm is a 35mm-format equivalent of 675mm on APS-C, which needs a lot of care in shooting.

Comment by johnriley posted on Is the 150-450mm sharp at 450mm wide open? at 25/05/2016 - 08:46

Ye it will work just fine. The simple and well made Pentax Adapter K is the best option, but not the cheapest of course, and will give infinity focus.

M42 lenses work more conveniently than M series K mount ones. These are all non-electronic so the DSLRs cannot stop them down in the usual way, but the M42 will have an A/M switch. Focus on A, with the lens wide open, and then turn the switch to M to stop down to the set aperture, meter and shoot.

Comment by johnriley posted on M42. To k mount adapter at 25/05/2016 - 08:42

I had a look at the 10-17mm with the K-1 and at 17mm it looks as though it has possibilities. At least on the camera screen there did not seem to be any vignetting.

At 10mm up to about 14mm it's useless though.

Comment by johnriley posted on DA lenses with K1 at 24/05/2016 - 11:32

I think Algi it's time for you take some time out, so I'll apply a ban for 24 hours so you can cool off. You don't have a right to be offensive to others.

Comment by johnriley posted on New K-70 and 100-300 f4 on way at 21/05/2016 - 16:02

I'm asking you to stop now Algi, you're keeping it going and it's not necessary.

Comment by johnriley posted on New K-70 and 100-300 f4 on way at 21/05/2016 - 15:09

Buying, trying and sometimes reselling old lenses can be fun. There are, as we've all said, some gems at ludicrously low prices.

Comment by johnriley posted on SMC M lenses at 21/05/2016 - 11:22

Please get back to the subject Algi, we can all read what has been written so far.

I'm sure nobody intended to be misleading and a question mark would not have been the End Of All Things either.

There's no need for anyone to be portentous....

Comment by johnriley posted on New K-70 and 100-300 f4 on way at 21/05/2016 - 10:30

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johnriley

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