Question about Olympus Stylus 740 Digital Camera

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Underwater photography problems with MJU 740

Got Mju 740 with u/w housing. Have also used UFL 01 u/w slave strobe. Set on u/w macro or u/w wide2. About one third of 200 shots are under exposed - i.e nearly black. About another third are very grainy - as tho ISO set to 1600 . Rest are OK.
Shots taken with a mju 700 in the same situation are uniformly great. any ideas?

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  • nick189 Apr 02, 2008

    Thanks - Let me explain again.
    Weeks diving with two cameras - mju700 + mju 740, both with correct olympus u/w housing - swapping the ufl-01 flash unit between them. Wife with one, me with the other and swapping cameras on a dive by dive basis. Same depths and light conditions for both.
    Both cameras always set on automatic mode - either u/w macro or u/w wide.
    Mju700 = 400 great shots
    Mju740 = 400 shots - grainy/black/ok in equal proportions. Mju 740 pics out of water quite OK
    I'm thinking camera fault but don't know how to prove it...

  • nick189 Apr 02, 2008

    Thanks - no they're both the Olympus housings - PT 32 and PT 34
    I'm tending to think that it's a camera fault but can't understand why the above water shots are all OK...

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Ok,

you dont have any problems with your camera right? all you need is explaination why some pics are exposed, grainy and ok.

well, its easy enough to answer.

where and when have you been doing /taking thse pictures with "exposed" effect? same for the ones that are " grainy" and those that are ok.

i assume that you did not used all at the same time right?

it is an environmental problem. you have not set your cameras setting to coincide with the environmental factors which may bring a big effect on you photos.

with regards to IB4G2008 and sweet_rascal ,

you might have probably used it in manual mode and not in automatic mode which you camera itself will adjust to the environmental settings and everthing like ISO,focal length, clarity issues, blurr...etc.

so as an advise, try switching to automatic mode.

thanks for using fixya

Posted on Apr 02, 2008

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  • earl norman llanera
    earl norman llanera Apr 02, 2008

    ok, thats good enough explaination for the other camera.



    since same light conditions and depths, we can assume that the camera mju-740 has trouble with its lens. it may be mechanical or it may just be with the camera itself. but what i could advise is that have the camera checked out in a camera center which also have camera repairs and maintainance...



    hope this has given light to your problem.

  • earl norman llanera
    earl norman llanera Apr 02, 2008

    it may also be a possibility that the camera mju-740 has an un-pressurized lens housing . since you went diving...i forgot that. haha. anyway. that would probably be the cause also.

  • earl norman llanera
    earl norman llanera Apr 02, 2008

    again, the above camera shots are indeed well because unlike underwater. pressure builds up.



    that is the main reason why there is a difference when taking pics underwater and above water.



    thanks for replying. if you have anymore questions, please feel free to post them here..



    thanks for using fixya.

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Use the camera in auto mode and try it..
dont go for manual modes..

Posted on Apr 02, 2008

  • dewan nafees ahmed Apr 02, 2008

    ya that s fine.. use a auto mode..

    choosing UW macro mode will automatically enable flash.. so i think the problem is lying in two things..

    1--> shutter speed.
    2--> your ISO settings.

    for iso settings try keeping it neither too high nor too low..
    keep below 800.. above 400..

    @early
    thanks for correcting..

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Hmmm..well...let's see...poor resolution comes from one of two sources.

focal lengthe issues..

ocular clarity.

guess we'll try focal length...did you check to see that the housing and the lens are compatible, and perhaps you are experiencing refraction 101?

Posted on Apr 02, 2008

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