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Forum: General Talk
09-22-2010, 12:50 PM
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:(Oh! I so wish someone would be here to coach me through this!! sob, sob, sob ...
Well done, Laurentiu!
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Forum: Pentax K-5 & K-5 II
09-20-2010, 12:16 PM
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When did lack of experience, knowledge, or understanding prevent anyone from expressing their opinions on a public forum?
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Forum: Pentax K-5 & K-5 II
09-20-2010, 11:18 AM
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You sign up here, wait two and a half years, and THIS is your first post? Really?
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Forum: Pentax DSLR Discussion
09-17-2010, 09:39 AM
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The K-7's AF is definitely snappier than the K20, and even better with the new firmware. However I never understood why people say the K-7 isn't as good with the competition's in low light. I've been able to get a fix on subjects lit with candles!
I think it has more to do with the lack of contrast rather than light. I've tried to focus on a solid white wall in full daylight and all the lenses cycle over and over. Same thing happens with trying to focus on a subject in black satin. But you give it almost any kind of contrast in your focus area and it'll lock. That's definitely fine by me!
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Forum: Pentax DSLR Discussion
09-14-2010, 02:39 PM
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"pro" should describe the photographer and not the tool he uses for the moment.
same as a painter, do you call certain brushes "pro" brushes?
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Forum: Pentax DSLR Discussion
02-23-2010, 01:22 PM
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K-7 with firmware 1.02, all SDHC cards:
Does NOT Pass:
Transcend Class 6
Kingston Class 6
Patriot Class 6
Panasonic Class 10
A-Data Class 6
Pass:
Lexar Pro 133X (Class 4?)
Panasonic Class 6
K-7 with firmware 1.03, same cards:
ALL PASS except Kingston Class 6 and A-Data class 6 still do not pass.
Definitions:
Pass => camera will burst rate and record video per Pentax performance specifications
Does NOT pass => burst rate below spec and video recording buffer fills-up after 2-3 minutes.
I am glad to share that with you guys, I spent HOURS testing this as I thought my camera was at first defective. I agree with what someone said above, STAY AWAY from discount cards, you get what you pay for. As you can see above some Class 6 cards were out-performing Class 10 before firmware update, still issues with some Class 6, but to be honest, I cannot see any diff between the working Class 6 and 10 as the former now perform per spec. Class 10 will not improve perfomrance if your Class 6 already perform per spec, at least on the K-7
1.03 firmware improved things significantly on my Camera. Nothing beats empirical research...
Hope this helps
xGene
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Forum: Pentax DSLR Discussion
09-12-2010, 01:22 PM
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Well there is still the way like I use my fully manual lenses - by tricking the camera into thinking there was a non-manual f/1.2 lens attached. Lets you use all camera modes (Green, P, Sv, Tv, Av, TAv, M, B, X and User) and therefore eliminates the need to use stop-down metering and gives you matrix metering.
Good thing: it's very easy to do. Just put something conductive on the recessed A-pin - so that lens mount and camera bayonet/mount are connected.
I'm using aluminium-tape. Doesn't last forever but is doing a great job for like half a year now.
Bad thing: you have to adjust aperture setting on both the camera and the lens. The camera thinks it could control the aperture and infact it does but because of different aperture machanisms in pre-A lenses it isn't doing it right.
Bigger annoyance: every lens will be seen as having a max. aperture of f/1.2 (and it needs to be that way otherwise stopping down won't work right on these lenses) - so to get the exposure right you have to use exposure compensation.
For a lens with a maximum aperture of f/2.8 this means EV compensation needs to be set to -2.5 (f/1.2--->f/1.7 = 1 stop, f/1.2--->f/2.4 = 2 stops, f/1.2--->f/2.8 = 2.5 stops).
This however means using slower lenses than f/3.5 will most likely result in chronic overexposure if you're using a camera only allowing for +/- 3EV compensation. K-x, K-7 and soon K-5 owners don't have to care with their luxurious +/- 5 EV...
And there's another limitation to respect: Unfortunately the whole thing only works perfectly with lenses slower than f/1.2 and faster than f/3.5. Because of that said change in aperture machanism there won't be enough actuation on a very fast lens to stop the aperture down to your setting. Slower lenses won't have that problem (but see above - overexposure).
The fix I used for my f/1.4 lens was to unmount it slightly so it just works as any M42 lens (without an A/M switch). Set aperture on camera and lens and either lock exposure before you stop down or use EV compensation accordingly (stopping down will result in actual darkening so if not prevented metering will mess up). Yes I know this is way more complicated than using it in stop-down mode. But having program modes and matrix metering together with full EXIFs means more to me.
About modes: yes, you could use every mode you can use with an A-lens but I recommend sticking with Av, TAv, X, B and M - other modes may pick an aperture value not actually available on your lens.
But that's about it. For me it is absolutely woth the "trouble" as you get almost all benefits of an A-lens without having one. And if you don't mess up you get correct EXIF-data, too. |
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Forum: Pentax DSLR Discussion
09-09-2010, 06:48 AM
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It doesn't seem Pentaxians are ever happy. All they do is complain about what they don't have instead of seeing what they do have. Two awesome announcements today. A new lens and a new camera and all the comments are about how much of a failure this camera and lens are when no one has even tried them yet. For one it shows that Hoya is listening to its customers and giving them what they want. ISO 25000 come on that is awesome. New improved AF, great too, more frames per second, illuminated focus points, and a solved battery problem. WOW...when will we find something else to complain about.
The new lens well we wanted a inexpensive lens...now we have it and man its complain city.
I say CONGRATS PENTAX ON THE NEW CAMERAS AND NEW LENSES...I'll be getting one of them i'm sure.
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