All Forum Comments
Comment by RR posted on Newbie question about raw format at 11/09/2010 - 18:51
No, the raw carries the information on what the white balance was when shot & this will be displayed as a default when you open the raw file, you can then change it using the software without degrading the image.
It's always best to get the WB as near as you can when shooting though as it gives the metering the best chance at getting things right.
It's always best to get the WB as near as you can when shooting though as it gives the metering the best chance at getting things right.
Comment by RR posted on Newbie question about raw format at 11/09/2010 - 14:48
Of course street can be shot at any focal length, but I find less than 50mm (equivalent) to be the most engaging.
edited, due to forum script not liking the "less than" sign.
edited, due to forum script not liking the "less than" sign.
Comment by RR posted on What primes would we like to see? at 11/09/2010 - 14:44
Algernon wrote:
What everyone seems to be missing about this lens is that 35mm is the STANDARD LENS for Pentax digital just as 50/55mm was the standard for 35mm cameras.
You have to go back to 1957 for the last time that Pentax sold a standard lens that had a poor f/2.4 as it's widest aperture. It was the first 58mm lens for the newly designed Asahiflex link It was replaced 3 years later with an f/2.2 design. Other manufacturers rarely produced anything smaller than f/2.2 as their standard lens. So why they have produced this is baffling?
Hopefully it will perform better than what the f/2.4 part of the design brief seems to indicate.
One fundamental argument is that now you can push the iso up at will, rather than be stuck with 200 asa film at dusk so needing that extra light gathering ability of the larger aperture lens.What everyone seems to be missing about this lens is that 35mm is the STANDARD LENS for Pentax digital just as 50/55mm was the standard for 35mm cameras.
You have to go back to 1957 for the last time that Pentax sold a standard lens that had a poor f/2.4 as it's widest aperture. It was the first 58mm lens for the newly designed Asahiflex link It was replaced 3 years later with an f/2.2 design. Other manufacturers rarely produced anything smaller than f/2.2 as their standard lens. So why they have produced this is baffling?
Hopefully it will perform better than what the f/2.4 part of the design brief seems to indicate.
Depth of field & subject isolation aside, having such a fast lens isn't AS important as it used to be.
Comment by RR posted on DA-L 35mm f2.4 announced at 11/09/2010 - 14:21
Let me get this straight... you wouldn't be excited by a 200mm equivalent f1.4 ?
35mm is a classic focal length & many a street photographers mainstay.
42mm seems an odd length, but then again Pentax released a 43mm as a "standard" lens & although not a huge seller, it's probably more down to price when you can get (or could get at least) a 50mm for a fair bit less cash.
35mm is a classic focal length & many a street photographers mainstay.
42mm seems an odd length, but then again Pentax released a 43mm as a "standard" lens & although not a huge seller, it's probably more down to price when you can get (or could get at least) a 50mm for a fair bit less cash.
Comment by RR posted on What primes would we like to see? at 11/09/2010 - 14:12
That page is heavily maths based though & they seem to not make any IQ claims one way or the other so I'd still deem it relevant (if a litle tough reading!)
I take your point though, dated conclusions on FF vs APS-C would need to be looked at closely if making claims one way or the other as sensors have improved considerably year on year.
I take your point though, dated conclusions on FF vs APS-C would need to be looked at closely if making claims one way or the other as sensors have improved considerably year on year.
Comment by RR posted on FF & APS-C sensor & lens comparison at 10/09/2010 - 20:37
johnriley wrote:
That site is dated 2005, so it is a bit out of date now.
I wasn't aware that the laws of Physics had changed in the last 5 years.That site is dated 2005, so it is a bit out of date now.
The op video is a nice graphical representation of the crop factor in effect, of course you'd just use wider lenses on the 7d to achieve your intended coverage.
What is startling is the quality of the video, no wonder TV companies have started shooting with the 5d. A low budget way to get a highly cinematic look.
Comment by RR posted on FF & APS-C sensor & lens comparison at 10/09/2010 - 20:18
Dangermouse wrote:
and Pentax are offering what APS-C cameras need here - a cheap, standard focal length prime. I don't think any of the competitors offer such a thing?
On the contrary, all the competitors have a similar lens in their lineups.and Pentax are offering what APS-C cameras need here - a cheap, standard focal length prime. I don't think any of the competitors offer such a thing?
Nikon 35mm f1.8
Canon 35mm f2.0
Oly 25mm f2.8 (remember their 2.0x multiplier)
plus Sony recently announced an affordable 35mm f1.8
It's nice to see Pentax offering a lightweight option though, the affordable primes are pretty plastic fantastic anyway so why not add the mount into that equation.
Comment by RR posted on DA-L 35mm f2.4 announced at 10/09/2010 - 15:58
I believe ED stands for Extra low Dispersion, & basically means that colour fringing should be well corrected.
Comment by RR posted on Understanding lenses. at 12/08/2010 - 20:49
Light hitting the front element at an angle will result in a reduction in contrast, so always use a lens hood if you can.
Comment by RR posted on How useful are.... at 12/08/2010 - 20:45
but they may have never got the WB wrong (or at least will admit to it).
The concept of WB is to produce a "correct" colour temperature, but I'm in the business of producing images, not scientific white balances. Therefore I'm looking to retain the quality of the ambient light colour, not filter it away with AWB. Sunsets are meant to be red, not grey.
So I use "daylight" predominantly (with exceptions) and revel in the most dramatic lighting I can find. Which is exactly what I did when I used colour slide film - how many of us measured the colour temperature then and applied colour correction filters?
IMHO we become obsessed with some aspects of digital imaging not because it's a good idea, but because we can. Of course, if that's part of an individual's style and fun then it's OK as well.
If there are several different temp light sources or a very tinted cast, then I will set WB to daylight also as a much better starting point.