Algernon

Joined: 22nd May 2010

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Algernon
I've got the Chinon 28mm f2.8 and it's a handy lens for close-ups from 200mm and can have nice bokeh and character. It's really soft though at the edges and corners, making it unusable for things like landscapes and buildings.

Comment by Algernon posted on older Prime vs newer Zoom at 17/07/2011 - 19:20

Algernon
That's right Lemmy, but because I already said so above, I'm afraid I can't send you the prize.

I would call them equal and it does look like the Kit Lens has barrel distortion and the 43mm has very slight pincushion, but the bridge won't be anything like straight, probably built to a camber and it will have distorted over the years with all them rivets.

I'm happy that the lens is so good, because over the years I've bought zooms that according to test reports were supposed to be good and they turned out to be rubbish. If only it were an 18-300mm

Comment by Algernon posted on What is the sharpest zoom lens that you have used? at 17/07/2011 - 18:28

Algernon
Mine's just a photo of a tree stump carving of an owl I took at a nature
park near Wigan.... just used it because it was different than a
stock avatar.

Comment by Algernon posted on Your Avatar at 17/07/2011 - 18:14

Algernon
It was the Kit against a Limited and the Kit isn't at it's best at 43mm.
I'd like to compare it with a 31mm Ltd

I expected that most people would get it right and they did. The sun was coming through different holes on each shot which makes them look different.

I also tried a Pentax_A 28mm f/2.8 and Ensinor KM 28mm f/2.8 against the Kit Lens and the Kit lens was the best especially at the edges. The Ensinor put up a very close fight, but was lower on contrast. The Pentax_A 28mm f/2.8 has been re-classified as unusable

The Kit lens was also better than a Pentax_A 24mm f/2.8 on a previous
test.

Comment by Algernon posted on What is the sharpest zoom lens that you have used? at 17/07/2011 - 17:10

Algernon
This was a test shot between the Pentax 18-55mm Mk2 lens and the
Pentax 43mm Limited. Both f/8 at 1/200th (tripod) 200ISO K-5

1:1 (100%) Compare captured by a screen grab at 1280 wide.
This is the centre of the frame, but the edge was very
similar. The 43mm was slightly better in the corner.

This one has been reduced to 800w and slightly sharpened.

Comment Image


The 1280w original unsharpened is here:

http://uppix.net/c/0/8/4a4a760fa76be196f270cd16b2dd8.jpg

I've deliberately not said which is which

-

Comment by Algernon posted on What is the sharpest zoom lens that you have used? at 17/07/2011 - 15:30

Algernon
That's the one!

Comment by Algernon posted on Most Used Lenses Survey 2011 - The Results - Two Forums ! at 17/07/2011 - 15:29

Algernon
Mike-P wrote:
I can tell you are a little put out that they are not producing the lens in Pentax mount.
I never noticed that!

Comment by Algernon posted on Tamron AF 70-300mm VC USD - Poll at 17/07/2011 - 14:59

Algernon
I assume you've tried tapping it with a hammer!

Comment by Algernon posted on Sigma 50 1.4 from Microglobe at 17/07/2011 - 14:55

Algernon
I never go above 800ISO, but I see a massive difference. The amount of under/overexposure you can pull back is unbelievable. Smeggy managed 6 stops I've managed 1.5 stops which was from almost black to correctly exposed. On the K20D anything dark just went very noisy when you tried to lighten it by even a small amount. The D7000 should be the same. Pity it hasn't got in-body SR for the older lenses.

Even at 400ISO the camera picks stuff up in the shadows that just wouldn't be there on the K20D. I still like using the K20D in bright light at 100-200ISO

Comment by Algernon posted on K5 @ ISO 25600 at 17/07/2011 - 14:46

Algernon
Good idea Don.... 2 or 3 spots of Blu-Tak would also work.

Comment by Algernon posted on Welding Mask Glass at 17/07/2011 - 14:06

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