Comments made by johnriley - Page 1744

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A succinct definitive answer for each, might save a lot of time and be of real benefit.

There is often no such thing as there are different viewpoints that are equally valid.

I've asked before whose definitive answer should we have? Mine? Someone else's?

The strength of a dscussion forum is that we can constantly discuss and re-appraise as we go.

Comment by johnriley posted on What about a Wiki? at 18/06/2009 - 15:20

JPEG for virtually everything. Convenience to just get on with the images without messing about with converting plus a quality level which is so good that it really makes no practical difference.

Some of our best photographers at ADAPS shoot in JPEG and their prints are stunning.

Comment by johnriley posted on Holiday shots Raw ofr Jpeg at 18/06/2009 - 15:10

Maybe not as much, but removing scattered light before it hits the lens seems like a good idea in some extreme circumstances. The only way to be sure is to take some with and some without, something which I haven't done recently.

Comment by johnriley posted on using filters at 18/06/2009 - 15:07

UV and Skylight filters are useful at high altitudes to reduce excess blue and haze.

I don't use them all the time for protecting the lens though.

Certainly use of filters where they are needed is a good idea. Lots of filter effects can be done in Photoshop, but obviously not those that demand the light is filtered before it reaches the sensor.

Comment by johnriley posted on using filters at 18/06/2009 - 12:45

As regards SR, old lenses can be set to an approximation quite happily, but if preferred simply turn SR off.

Comment by johnriley posted on SMC K (fully manual) lenses on K20D at 18/06/2009 - 11:39

Sigma lenses may not report correctly to the camera anyway, so it's no surprise that an old one doesn't.

For an important shoot using the kit lens would be a much better bet for you, especially at first.

Old lenses are best left to experiment with at your leisure, not under time pressure.

Comment by johnriley posted on Hello + quick question about a lense please! at 18/06/2009 - 11:37

Thank you rparmer for the useful information.

As stated, Vivitar did not manufacture lenses, so it is useful to have a method to separate the good ones (and they can be very good) from the not so good ones.

Comment by johnriley posted on Vivitar 24mm F2.8 at 18/06/2009 - 09:35

If it is the SMC version, which it should be if it has the open aperture metering lever, it was manufactured 1971-1975, 11 elements in 7 groups, Min Focus 0.66 feet, 230g weight.

It is said to be very sharp and contrasty, unlike earlier fisheye designs.

Comment by johnriley posted on Takumar M42 f/4, 17mm "fisheye" lens at 18/06/2009 - 09:29

The images that I have made into books look very very close to the originals. If they are consistently printing too dark just make your images a bit lighter to compensate.

Comment by johnriley posted on Photo Books at 18/06/2009 - 09:20

The image if way too big to view properly in a forum. Ideally, images should be no more than 800 pixels wide.

Comment by johnriley posted on Kit Lens v 16-45, opinions please at 18/06/2009 - 09:18

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