All Forum Comments
The availability of f2.8 is attractive to me for it's low light ability. I would have thought that DOF would be pretty wide at 14mm on an APS-C camera even at f2.8
Comment by wadna posted on DA 14 f2.8, DA 15 f4 or something else? at 08/07/2012 - 07:26
Thanks all. I'm surprised no-one has suggested a manual focus prime lens.
Comment by wadna posted on DA 14 f2.8, DA 15 f4 or something else? at 08/07/2012 - 00:21
For me it's an academic exercise at the moment but if you were in the market for a wide angle lens to fit a K-5 would you buy the DA14 f2.8, the DA15 f4 or something else?
DA14 is 1 stop faster & is slightly wider.
DA15 has better resolution figures, is smaller, lighter & cheaper.
Or, given that manual focus would not be so critical on these lenses because of their innate DOF particularly when stopped down a bit, would you suggest something else?
Thanks,
Ian.
DA14 is 1 stop faster & is slightly wider.
DA15 has better resolution figures, is smaller, lighter & cheaper.
Or, given that manual focus would not be so critical on these lenses because of their innate DOF particularly when stopped down a bit, would you suggest something else?
Thanks,
Ian.
Comment by wadna posted on DA 14 f2.8, DA 15 f4 or something else? at 07/07/2012 - 06:47
"That's comparing Samsung vs Sony Exmor and there's a lot more than the bit depth which separates the two sensors."
There certainly is! My K-5 arrived yesterday & brief testing shows a huge low light advantage over my K-7. I haven't done comparison prints yet but on the computer monitor the 5 looks good.
There certainly is! My K-5 arrived yesterday & brief testing shows a huge low light advantage over my K-7. I haven't done comparison prints yet but on the computer monitor the 5 looks good.
Pentaxophile wrote:
A comparison of K-01 or K30 vs K5 would compare the same Sony sensor, but one with 12bit and one with 14bit oputput. From what I can tell, the additional 2bits have only a subtle effect on IQ even if your torture test the files.
On that example the K-01 is on the left, the K5 is on the right, both images 400ISO DNG files, with the same amount of fill and brightness added in LR3.
The K-5 looks a clear winner.cabstar wrote:
Seems to make a difference in lightroom. Images from my GX20 I can increase exposure by 2 stops on the k-5 by 4 stops...
That's comparing Samsung vs Sony Exmor and there's a lot more than the bit depth which separates the two sensors.Seems to make a difference in lightroom. Images from my GX20 I can increase exposure by 2 stops on the k-5 by 4 stops...
A comparison of K-01 or K30 vs K5 would compare the same Sony sensor, but one with 12bit and one with 14bit oputput. From what I can tell, the additional 2bits have only a subtle effect on IQ even if your torture test the files.
On that example the K-01 is on the left, the K5 is on the right, both images 400ISO DNG files, with the same amount of fill and brightness added in LR3.
Mark-B wrote:
Thanks all for the advice.
In the end I have decided to jump ship and change systems.
I have now sold all of my Pentax kit (via the forum) and have invested in a Nikon D700 and a couple of lenses.
I will miss the compact size of the K7 and 50-135 but having had a chance to play with the new kit I can say that it's all very, very good - full frame and ultra fast AF .
Now just got to find a Nikon forum as freindly as this one (not sure that's going to happen!)
Regards
Good luck with it. The D700 is a great camera but you'll notice the weight.Thanks all for the advice.
In the end I have decided to jump ship and change systems.
I have now sold all of my Pentax kit (via the forum) and have invested in a Nikon D700 and a couple of lenses.
I will miss the compact size of the K7 and 50-135 but having had a chance to play with the new kit I can say that it's all very, very good - full frame and ultra fast AF .
Now just got to find a Nikon forum as freindly as this one (not sure that's going to happen!)
Regards
Comment by wadna posted on K5 vs K7 AF speed at 24/06/2012 - 23:51
I don't know how the voting works but I uploaded 3 photos about a week ago & all were accepted in about 2 days (perhaps it was 3).
Comment by wadna posted on PPG - yet another thread! at 15/06/2012 - 20:08
A couple of external hard drives.
Comment by wadna posted on What is the safest archive media ? at 11/06/2012 - 03:10
