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Comment by bjolester posted on DA 12-24 + K5 for Northern Lights at 23/09/2012 - 19:18
Bjørn
Comment by bjolester posted on DA 12-24 + K5 for Northern Lights at 22/09/2012 - 15:34
Hi Bjørn,
1000 is the max iso I find myself using on K-5 without worrying about image quality. Occasionally I do use 1600 or 3200, but then you got to work it out quite a bit in PP.
Bjørn, I think you will need to have a play and decide what level of noise is acceptable to you.
I don't want to spend time sorting out noise, so like Kingfisher I rarely go very high.
You may need to decide whether to go for longer exposures rather than higher ISOs for your Lights.
Reasonable chance of you seeing them tonight btw (if the weather is kind) .
There was in fact a brief spell of NL earlier this week, possibly on Tuesday evening, but I did not get a chance to take any photos. But it was good to see some of that "green magic" on the skies again. I grew up in the Stavanger, in the south of Norway, and in Stavanger I cannot remember ever having seen any Northern Lights. So I am as excited as any tourist/visitor when the Northern Lights appear here in Trondheim (the middle of Norway). I will keep my eyes open tonight for NL if the weather permits
Comment by bjolester posted on DA 12-24 + K5 for Northern Lights at 21/09/2012 - 14:42
You've done the maths OK. The K-5 performs very well, have a look at the EPZ test and you'll be able to see the ISO results for yourself.
I just don't worry about the ISO value, if I need the higher settings I just use them regardless. Some picture is better than no picture and the K-5 is better than anything else I've seen so far.
I have consciously not read many reviews of the K5, to avoid temptation, but now I feel that it is time to move forward. The K20D is quite brilliant for many types of photography, but when it comes to low-light/night photography, it does not really perform as well as many newer DSLRs. I am waiting anxiously to see what kind of price drop there will be here on the K5 now that the new models arrive
Bjørn
Comment by bjolester posted on DA 12-24 + K5 for Northern Lights at 21/09/2012 - 10:30
1. Just count the stop differences, and you have it.
I soo want to convert a Tokina 11-16mm f2.8 for stuff like this
Bjørn
Comment by bjolester posted on DA 12-24 + K5 for Northern Lights at 21/09/2012 - 07:14
My plan now is to save up funds for a K5 and a wider lens. The first lens on my "wish-list" is the DA 12-24. I do not have any experience with the K5, so therefore the following questions:
On the K20D I used ISO 400 and the FA 24mm wide open (f2.0). This setting functioned well with the 6-12 seconds exposures I employed.
1. How high ISO would one need with the 12-24mm wide open (f4.0), based on my K20D settings?
2. What is the max ISO on the K5 before image quality suffers?
I am grateful for any advice on this matter!
Bjørn
Comment by bjolester posted on DA 12-24 + K5 for Northern Lights at 20/09/2012 - 22:08
I have not had the pleasure of trying the 30mm 2.8, but I can wholeheartedly recommend the K28mm 3.5!
Here is an interesting article about the K28mm 3.5:
http://www.northcoastphotographer.net/blog/files/9796fda7af3e143f245985ca585defa...
Good luck with whatever lens you decide to hunt for
Bjørn
Comment by bjolester posted on SMC 30/2.8 or SMC 28/3.5 at 17/09/2012 - 16:10
Bjørn
Comment by bjolester posted on Pentax 67ii metering, exposure, MLU at 08/09/2012 - 11:14


My conclusion so far: Even though there are really no fast UWA options for Pentax besides Samyang 14mm f2.8 and Da 14mm 2.8, it does not really matter, because the K-5 is so good at high ISO performance.