All Forum Comments
Comment by Hythloday posted on AP Test of 12-24 and 50-200 lenses at 20/10/2007 - 15:56
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Personally I'm not all that happy about now having both Tamron and Tokina lenses rebadged for Pentax
The new 18-250mm will probably be a rebadged Tamron.Personally I'm not all that happy about now having both Tamron and Tokina lenses rebadged for Pentax
But the DA12-24mm is clearly not a rebadged Tokina. I had a Tokina 12-24mm with my Canon 300D. Now I have a DA12-24mm with my Pentax K100D. Optically, the Tokina 12-24mm and the DA12-24mm are practically the same. The DA12-24mm is better with flare. But the exterior of the two lenses is very different indeed. The Pentax 12-24mm is about 25% lighter in weight than the Tokina 12-24mm.
Comment by Hythloday posted on New Pentax SMC DA 18-250mm lens soon at 30/09/2007 - 17:52
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The convenience factor is huge - that range would have covered about 98% of what I needed over the last month on holiday, and I could easily have lived without the other 2%.
I'm sure there are other compromises too, certainly F6.3 at the long end is getting a bit slow, but I'll be very tempted to get one.
On my Canon 300D I had a Sigma 18-125mm. It is not a bad lens. But when I analysed my pictures I found that I used the range 18-23mm for more than 40%. I hardly used the range 50-125mm.The convenience factor is huge - that range would have covered about 98% of what I needed over the last month on holiday, and I could easily have lived without the other 2%.
I'm sure there are other compromises too, certainly F6.3 at the long end is getting a bit slow, but I'll be very tempted to get one.
It depends on the photographer whether the new Pentax 18-250mm will be very convenient. For me it won't. I use my DA12-24mm and my DA16-45mm most.
When I had my Sigma 18-125mm I found that the IQ was best when using aperture 8.0 or 11.0. The range 125-250mm will be very difficult to handle.
Comment by Hythloday posted on New Pentax SMC DA 18-250mm lens soon at 30/09/2007 - 11:17
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They may be as sharp as each other, may possibly be as resistant to flare as each other, but even then they'll never be the same. As to which one you'd prefer - that's down to personal opinion. But bokeh, colour rendition, contrast, vignetting - all these are almost certainly going to be different between any two lenses.
It is very personal, of course. The new Sigma 18-50mm EX is quite an improvement over the old version, which showed lots of PF.They may be as sharp as each other, may possibly be as resistant to flare as each other, but even then they'll never be the same. As to which one you'd prefer - that's down to personal opinion. But bokeh, colour rendition, contrast, vignetting - all these are almost certainly going to be different between any two lenses.
But if I had the choice between the DA*16-50mm and the Sigma 18-50mm I would choose the DA*16-50mm simply because the range 16-18mm is quite useful.
BTW I am quite happy with my DA16-45mm.
Comment by Hythloday posted on Sigma EX 18-50/2.8 or Pentax 16-45mm at 10/09/2007 - 17:45
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Hi guys I'm looking for a good all round/everyday lens to replace the Pentax 18-55mm on my K10D. I wondered if the Sigma EX 18-50/2.8 would be as good or better than the Pentax 16-45mm... And which I should go for.
I have a DA16-45mm with my Pentax K100D and used to have a Sigma 18-50mm EX with my Canon 300D.Hi guys I'm looking for a good all round/everyday lens to replace the Pentax 18-55mm on my K10D. I wondered if the Sigma EX 18-50/2.8 would be as good or better than the Pentax 16-45mm... And which I should go for.
Optically, the new Sigma 18-50mm EX Macro will be equal to the DA16-45mm. The old version, which I had, showed quite some PF. The range 18-50mm is not very useful, especially on a 1,6x crop camera. I missed the WA part, so I did not use it much. The DA16-45mm is used quite a lot by me. The WA range 16-18mm is very useful indeed.
Comment by Hythloday posted on Sigma EX 18-50/2.8 or Pentax 16-45mm at 08/09/2007 - 14:16
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if, having read this review, any of you 16-45 owners are inclined to skip this obviously inferior lens, I'd be happy to take it off your hands and dispose of it free of charge
It is too bad to give away. Only fools like you will want to take it if, having read this review, any of you 16-45 owners are inclined to skip this obviously inferior lens, I'd be happy to take it off your hands and dispose of it free of charge
But I was even a bigger fool, for I paid money for it
Comment by Hythloday posted on Pentax 16-45 f4 DA Lens - Photography Monthly Test ??? at 01/05/2007 - 18:45
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A group test of Fast Standard Zooms in the May edition of Photography Monthly, slams the Pentax 16-45 into last place. In the Verdict, it said that, Pentax owners wishing to stay with their camera brand are left out in the cold.
The problem is that the DA12-24mm and the DA16-24mm are equally bad Poor Pentax owners. What is to become of them?A group test of Fast Standard Zooms in the May edition of Photography Monthly, slams the Pentax 16-45 into last place. In the Verdict, it said that, Pentax owners wishing to stay with their camera brand are left out in the cold.
Comment by Hythloday posted on Pentax 16-45 f4 DA Lens - Photography Monthly Test ??? at 01/05/2007 - 17:49
[quote="golfdiesel"]
When I started using my Pentax K100D I found that he camera produces sharp images produces some moiré. The images produced by my Canon 300D were far less sharp and never showed any moiré. It has got everything to do with the AA filter.
When you shoot RAW you will see the difference immediately because they are unprocessed by he camera.
http://tinyurl.com/yyl4wp
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Sharpness has absolutely nothing to do with the sensor. Sharpness is influenced by the lens and the software.
Canon and Nikon over sharpen the images in their camera's which I think is a bad thing.
Of courese sharpness depends on the sensor, and on the AA filter. As Nikon says (see link), sharpness depends on sensor, software and lens.Sharpness has absolutely nothing to do with the sensor. Sharpness is influenced by the lens and the software.
Canon and Nikon over sharpen the images in their camera's which I think is a bad thing.
When I started using my Pentax K100D I found that he camera produces sharp images produces some moiré. The images produced by my Canon 300D were far less sharp and never showed any moiré. It has got everything to do with the AA filter.
When you shoot RAW you will see the difference immediately because they are unprocessed by he camera.
http://tinyurl.com/yyl4wp
Comment by Hythloday posted on K10D -sharp or not? at 06/01/2007 - 16:19
Comment by Hythloday posted on K10D or GX10 at 20/12/2006 - 18:03
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What I noticed is that at the 16mm the autofocus has some trouble at the infinity range. Sometimes it seems that the DS wants to adjust it beyond the infinity range.
My DA16-45mm does exactly the same thing on my K100D. In fact it focusses slighty beyond infinity at 16mm. At 45mm it focuses at infinity. Remember it is a retrofocus lens.What I noticed is that at the 16mm the autofocus has some trouble at the infinity range. Sometimes it seems that the DS wants to adjust it beyond the infinity range.
Comment by Hythloday posted on DS + 16-45 autofocus at 18/12/2006 - 19:13
Geoffrey Crawley thinks they are a Schneider design.
http://www.schneiderkreuznach.com/samsung/objektive_samsung.htm
DA12-24mm
DA50-200mm
DA18-55mm
D-FA100mm macro
FA35mm
DA10-17mm
are in fact all Schneider Kreuznach designs. Pentax hardly developed any lenses themselves. Practically all lens expertise has been bought from Schneider Kreuznach, Tokina, Tamron.