Can the new D90 take acceptable time exposures?

[mrcrassic]

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

But other than MAYBE a sunset, when would you EVER need an exposure more than 30 seconds?

 

[Bifurcator]

If I understand it correctly, other than not tripping the shutter constantly what you propose sounds identical to image stacking techniques.

Yup, pretty much. Just in-camera and done by the firmware - at whatever intervals work best for quality and heat management.

 

[Bifurcator]

But other than MAYBE a sunset, when would you EVER need an exposure more than 30 seconds?

You can't be serious...

 

[Garbz]

Actually that would be a very good idea. The problem with current image stacking techniques is that ultimately the shutter count goes up a LOT. That image below would have put a good 180 actuations onto my camera. The only downside the image blow at full 10mpx resolution clearly shows 180 individual stars due to the gap. Cooling was an issue for me when I took it I think it was 35 seconds on 10 seconds off.

But other than MAYBE a sunset, when would you EVER need an exposure more than 30 seconds?

2 hours good enough for ya?

 

[Bifurcator]

Actually that would be a very good idea. The problem with current image stacking techniques is that ultimately the shutter count goes up a LOT. That image below would have put a good 180 actuations onto my camera. The only downside the image blow at full 10mpx resolution clearly shows 180 individual stars due to the gap. Cooling was an issue for me when I took it I think it was 35 seconds on 10 seconds off.



http://farm2.static.flickr.com/1353/773160897_fae20200db.jpg

2 hours good enough for ya?

I wonder if heat can be managed with something like 1/2 second on and 1/60th off or some such more minute fractions. This would need lab testing i guess. And probably every sensor would profile differently. Modern Xeons use a similar system to manage heat and is kinda where I got the idea.