All Forum Comments
Comment by davidstorm posted on K-3 studio test shots now on Imaging Resource at 03/11/2013 - 00:42
I'm not so sure....I compared at IR with the Nikon D7100 instead, which I understand uses the same sensor and also loses the low pass filter.
Regards
David
Comment by davidstorm posted on K-3 studio test shots now on Imaging Resource at 02/11/2013 - 21:53
I have previously made prints from DNGs downloaded from Imaging Resource, and come to the conclusion that the K-3 has much worse noise at very high ISOs. I had got a second opinion, and agreement that my prints showed what I stated above.
I've now done my own side-by-side tests, and the results are different. My K-3's high ISO noise is hardly different from my K-5IIs's high ISO noise. I don't know why the results from the Imaging Resource DNGs are so different from the results from my own DNGs!
My tests were carried out at nearly the same time for both cameras. The Imaging Resource tests were done at different times for the two cameras, and some key factors may have changed.
Of course this will be dismissed out of hand by Smeggy and he will probably think you have (quote) 'shot yourself in the foot' by offering your opinions based on your own personal experience.
Personally I would have more trust / belief in opinions such as you have given above than in any comparisons / reviews based on the internet, thanks for this useful information.
Regards
David
Comment by davidstorm posted on K-3 studio test shots now on Imaging Resource at 02/11/2013 - 20:56
Just to pick up this point. I don't think I would describe what is happening here as arbitrary because it has been specifically designed by Pentax to do the job. Whether or not we think we can do a better job, whether we can or we can't, is another matter entirely.
Regards
David
Comment by davidstorm posted on K-3 studio test shots now on Imaging Resource at 02/11/2013 - 00:21
I also agree that a 800px image on this forum tells us nothing. Where the K-3 is concerned I will only start to make a judgement when we have some real feedback from real users who have shot a variety of images in the real world. We've started to see some of this coming through but not nearly enough.
Regards
David
Comment by davidstorm posted on K-3 studio test shots now on Imaging Resource at 02/11/2013 - 00:05
I have had trouble with 2 cheap m42 adaptors they both got stuck on a 55-1.8 Takumar I had to remove them by nibbling away at the metal with a pair of pliers.I seems that the internal threads just wern't quite a match for the lens. But luckily I had removed the spring catch on them so they dismounted from the camera ok. Now I only use genuine pentax ones.
Regards
David
Comment by davidstorm posted on Pentax K to m42 adapter, any good? at 01/11/2013 - 21:44
In terms of the colour, this is probably more accurate to the way you saw it than the original version posted, I think somewhere in between the two would represent a good balance; maybe this one has a little too much yellow and the first one a little too much red?
I hope this is useful.
Regards
David
Comment by davidstorm posted on Critique Number 8 at 01/11/2013 - 21:31
Yes there are lots of questions!
- You need a M42 to PK Adaptor, flush fitting with infinity focus, like these on ebay: link
- Pentax SMC Takumar 55 F1.8 is an excellent lens
- It does not have AF, it is manual focus, manual aperture only
- Yes, you can use it for recording videos
Hope this helps.
Regards
David
Comment by davidstorm posted on Pentax K to m42 adapter, any good? at 01/11/2013 - 13:24
A also like the second image, but I do agree that the colours in both this and the third one don't look right. The third one doesn't hit the spot with me, maybe it's the colours, but I think also that the composition doesn't give my eye anywhere to wander through the image. I always like to see a sense of depth and perspective in a photograph and this one doesn't have that for me.
Thanks for posting these once again Alistair and giving us the opportunity to comment on them.
Regards
David
Comment by davidstorm posted on More from today for Critique at 31/10/2013 - 18:45
I haven't experienced any problems at all, I can only speak from own experience. I suspect that a lot of adaptors get stuck because of the spring clip that 'locks' them into the bayonet; this is why I have removed these from mine and after doing this I've permanently attached them to my M42 lenses and they fit perfectly with no issues taking them on or off. How were you using this adaptor?
Also, I would guess that some adaptors are better made than others. For me, it would be a complete waste of money buying the genuine ones because they would give me nil benefit over the ones I already have.
Regards
David
Comment by davidstorm posted on New zoom or several elderly primes? at 30/10/2013 - 21:24


Well I'm going to wait for the dust to settle because looking around there seems to be mixed messages coming out at the moment. Some of this is because many people, probably unwittingly, emphasise the factors which are important to their type of photography and minimise those which are not as relevant. The trend, not surprisingly, seems to be erring towards those who have gone and bought one thinking it is a big improvement to those who have recently bought the difficult to beat K5 ii's less enthusiastic.! It's all good fun and things will become clearer in the next few weeks and judgement should be easier for each individual.
Indeed. I have no blind belief in a reviewer's subjective opinion as being any more authorative from some random person on a forum.
However I do believe in the value of ruling out as many variables as possible when wanting to compare dynamic range/noise, etc from different cameras. This is where test shot RAWs from sites like Imaging resource are very valuable. It is silly to ignore them IMO
Any judgements I've posted about the K-5 and K-5iis (very old news now) have been based both on my personal experiences and what I've read. For what it's worth, the opinions I've posted on the K-5iis vs the K-5 have not diminished, in fact they have grown stronger the more I have used both cameras in the same shooting situations. I think this is broadly borne out by general opinion in the photographic world, but there will always be a wide range of opinions, some that agree with me and some that don't.
Regards
David