Can the new D90 take acceptable time exposures?

Discussion in 'Beyond the Basics' started by JerryinToronto, Oct 4, 2008.

  1. JerryinToronto

    JerryinToronto TPF Noob!

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    Hi, I used to do time exposures using a Minolta X-700 with a multi-function back and Kodachrome 100. But it's a real hassle to get that film processed in Canada. I know that the DSLRs have a problem with noise when doing low light scenes. Does the new D90 eliminate it, or at least significantly reduce it? I am thinking of doing multiple exposures as well.

    Jerry
     
  2. goodoneian

    goodoneian TPF Noob!

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    on digital slr's if you keep the iso low (200 or less i'd say) you shouldn't really have too much problem with noise. how long of exposures are you talking about though? with my d40 and d300 i could easily do 30 second exposures at iso 200 and would only have little if not any noise. i'm not sure if the d90 has it, but some nikons have long exposure noise reduction which also helps keep the noise to a minimum, even though it extends the time to record the image to the memory card.
     
  3. JerryPH

    JerryPH No longer a newbie, moving up!

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    If your exposures go beyond 5 minutes and up, believe it or not, good 'ole film will kick any digital camera's butt quality-wise. Not only that, but, you end up slowly overheating your sensor and burning out pixels WAY faster than if you did not do this.

    As a general rule, if I cannot do it in 30 seconds with my D200, I do not feel I need it that badly... lol
     
  4. JerryinToronto

    JerryinToronto TPF Noob!

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    I am thinking between 15 to 60 seconds. Just looking at doing some street time exposures to get the feeling of movement from the lights of street traffic.

     
  5. JerryinToronto

    JerryinToronto TPF Noob!

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    No, about a minute would be it. I think the D90 would be good. The local camera store is willing to giving a loaner, against a deposit, for a day or so. Trouble is they sold out of their 5 D90's in 2 days!! I'll have to wait until they get one. Must be a good camera.
     
  6. Bifurcator

    Bifurcator TPF Noob!

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    I'm always wondering why camera designers don't add a cooling system of some kind. I think it's kinda lame that they don't... I mean for the bucks they ask for these things.
     
  7. JerryPH

    JerryPH No longer a newbie, moving up!

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    Because so few people do it, it is not worth their time to invest R&D and costs for this.
     
  8. Garbz

    Garbz No longer a newbie, moving up!

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    That and peltier + heatsink makes for quite the large camera.

    [​IMG]
     
  9. JerryPH

    JerryPH No longer a newbie, moving up!

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    lol... no kidding!
     
  10. Early

    Early TPF Noob!

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    Shoot! This should be added to the "Advantages of film" thread floating around here somewhere.
     
  11. Bifurcator

    Bifurcator TPF Noob!

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    Well it wouldn't need to add any space. I know you guys are just having some fun with me but there is existing tech that could cool a CCD or CMOS and not add more than about 2mm to the size, then there's good old fashion air-flow, there's lots of things they could do... Hell, they even modify the firmware to operate the chip at lower temperatures with no space at all.

    And Jerry, did you ever think that the reason "so few people" try it is because it's simply not available in any modern camera? When I 1st got into film photography I guess 10% or more of all the shots I thought were cool were looooong exposures. ;)

    So nya-nya... :p
     
  12. Tiberius

    Tiberius TPF Noob!

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    Sensors attract dust like no other; air cooling is definitely a no-go.
    It's not that simple at all. You can't just tell the sensor to operate at a lower temperature, just like your car's computer can't suddenly tell it "keep accelerating but use less gas".
     

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