Pentax K-x ISO

Perry_95

2

11 Feb 2011 - 6:28 PM

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I seem to be finding that even in fairly ok lighting my camera wants an extremely high ISO (6400) and if i manually lower it then the pictures are either really dark or the shutter speed gets lowered. Is this just because it is actually poor lighting and i shood wait untill the summer when there is lots of light. Bearing in mind i was in a large studio room in my school where the lighitng isnt the greatest.

Perry_95

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11 Feb 2011 - 8:29 PM

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i use shutter priority, it with around 1/100 for portraits, and then the f/stop would be 5.6 and then the ISO kept going to ISO and me or my "teacher" couldnt figure out why.

bagman

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11 Feb 2011 - 9:23 PM

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sorry you didn"t say what lens you are useing. that could make a big change in out come your haveing in pic,s.

frank.

Perry_95

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12 Feb 2011 - 1:45 PM

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okay, i was using the 50-200mm kit lens, and if 100th sec shutter speed is optomistic then thats all i need to know, i didnt know if there was a problem with my camera or there was infact too little light. It was hard to say because i dont have a device that measures the amount of light, i dont even know if there is one!! so thank you, i have just come back from walking my dog on a very sunny day and i was able to go up to around 2000th sec shutter speed with ISO around 200-800

Perry_95

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12 Feb 2011 - 5:11 PM

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okay, thanks for the tip but the lowest ISO on my camera is 200 and ive read that it can be extended to 100 but dont know how.