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10-27-2010, 06:40 AM   #16
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I've always got all 4 lenses mentioned above in my bag, and use all of them for specific shots that I plan, but due to sometimes very dry and dusty winds, it is not always possible to change lenses if you are outside in the Karoo, for obvious reasons. That is why I have to decide on one lens that will be on my Kx most of the time.
I'll try a few shots at 18+35mm to see if it might be sharper compared to 50mm.
As I am new with the the DSLR and AF lenses, it might be just a question of me learning where the kit lenses will give me the best shots and under what conditions.
It is however still nice to hear all your opinions, it makes the transition from SLR to DSLR much easier. Thanks

10-28-2010, 07:43 AM   #17
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I think my 18-55 is about the same as yours.

My 50-200 kit lens, OTOH, makes angels weep. I've never taken a single shot that was this sharp, and it's FAR worse at 50mm than my 18-55 is. I'll dig up some samples... I think I need to warranty it. It's frustrating to read how much people like the 50-200 DA-L. Mine is crap.

Yes, I've calibrated and re-calibrated the focus.
10-28-2010, 08:08 AM   #18
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If i get to it this weekend, I'll take a few shots through the whole range, and post them next week. This time I'll go fully manual on everything, even focus. Hope I am lucky and get better results than you!
11-08-2010, 08:05 AM   #19
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Sorry for the wait, I eventually got to it. All shots taken on manual, WB "sunny" f16, 1/125, DA L 50-200 ISO 200 and DA L18-55 ISO 100. Hand held, AF. Shot in RAW, cropped and resized to 800p and converted to JPEG, no other PP
Replaced photo's, see page 3
It looks as if I got a bad copy of the 18-55, and a much better 50-200?


Last edited by altopiet; 11-10-2010 at 10:07 PM.
11-08-2010, 08:12 AM   #20
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Do you have the original uncropped photo available to post?
11-08-2010, 08:33 AM   #21
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I do. Shall do a 800p resize of original, to JPEG. As I am just a new member, I'll have to remove the cropped ones, not enough space. shall I do that?
11-08-2010, 08:50 AM   #22
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hmm. maybe some other people want to see those...

I'm curious about the originals because I want to see the overall image quality. Do have a Flickr or Smugmug account?
11-08-2010, 09:06 AM   #23
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I'm not much of a fan of the kit lens. I use it only when I need something wider than 40mm, my next widest lens.

Your second test with your shoe as the subject is questionable at f.16. This is not the sharpest stop, but it is useful for wide depth of field.

Your kit lens doesn't appear to be as sharp as the zoom lens. You might consider seeing if you can actually get a sharp pic from your kit lens in any conditions. If not, don't use it.

11-08-2010, 09:20 AM   #24
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I have seen people get reasonably sharp images from these two lenses. What's the threshold for making a warranty claim? Just how unsharp do they have to be? Is there an objective standard?
11-08-2010, 09:59 PM   #25
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QuoteOriginally posted by richardm Quote
hmm. maybe some other people want to see those...

I'm curious about the originals because I want to see the overall image quality. Do have a Flickr or Smugmug account?
I'll post them on flickr
QuoteOriginally posted by dragonfly Quote
Your second test with your shoe as the subject is questionable at f.16. This is not the sharpest stop, but it is useful for wide depth of field.
You can look at the EXIF altopiet's Album: Kit lens test - PentaxForums.com

I'll also try some more shots with the 18-55

Thanks again to you all for trying to help me solve this
11-08-2010, 10:20 PM   #26
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The M50 is defnitely sharpest.

I get some quite sharp images from the 18-55, and some that are not so sharp.
11-08-2010, 11:54 PM   #27
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Flickr: altopiet's Photostream

Here you will see the original shoe shots, and I've added 3 more, of a chain around a tree, that might give a better indication. The new shots were taken in manual mode, ISO100, f16,1/125, WB "sunny". AF reset after each shot

No PP, just resized to 800p
11-09-2010, 12:13 AM   #28
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Having looked at it again, the new shots of the chain and tree looks a little bit better compared to the shoes, at 55mm, but gets worse as you go lower, and with 18mm plain bad?
11-09-2010, 12:20 AM   #29
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QuoteOriginally posted by civiletti Quote
The M50 is defnitely sharpest.

I get some quite sharp images from the 18-55, and some that are not so sharp.
Hi civiletti, I agree with you, my 50-M definitely also sharpest of the lot, but sometimes the AF comes in handy.
If I compare the 18-55 and 50-200, I don't think the 18-55 will be on my Kx again
11-10-2010, 05:05 AM   #30
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Want to see an absolute disaster? Granted, this is with the lens wide open and at 200mm, but it shows just how bad the photos can get if you aren't careful.... Nice fringe around the tree trunks....
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