All,

Please excuse me for asking a potentially stupid question. However, it seem that when using the AEB (auto-exposure-bracketing) mode of the Pentax K-r, it is NOT possible to trigger the exposure using the remote. I have fiddled with the camera, and read the instructions and this seems to be something that I will just have to live with (or trade up to a K5). This is a rather annoying limitation.

My question is whether anyone knows of any work around to this. I do a lot of HDR work, much of it in fairly low light conditions where having my finger on the shutter release button is simply not an option. Currently, I am using the exposure compensation in conjunction with the remote or the timer to shoot one shot at a time, adjusting the exposure compensation between shots. If there is a way of triggering AEB shooting with the remote, I would be very happy to know about it!

I suspect I am going to have to bite the bullet and upgrade to a K5 (should have spent more in the first place...).

Best regards,

Dave

I generally find the default NR settings on the K-r are adequate for most purposes. Its not like high ISO noise is an enormous problem with this camera anyway. I do get noise in my shots, especially when using HDR processing of bracketed shots, but I generally find it easy enough to deal with the noise after the event.

Where I have a specific question myself is in the area of slow shutter speed noise reduction (aka dark frame subtraction). I take a shots using a B&W ND110 ten stop neutral density filter and got fed up of waiting for in-camera dark frame subtraction to happen. With exposures of around 180s at ISO 100, I am not seeing an issue with not doing this and I was wondering just how long an exposure one could get away with whilst not bothering with dark frame subtractions?

Sorry to post a response that to some extent only serves to ask a further question...

Vic,

I have not maintained my website for two years (!!). However, you can see some of my images here.

I have to say that astronomical photography is interesting, but it is a little too tricky at times! Tracking and focus are particular issues. I am taking a break form it at the moment to photograph things a little closer to home

Regards,

Dave

Hi, my name is Dave Sexton. My usual photographic interest is very long exposure astronomical imaging using specialist cooled CCDs and an astrograph. Out of sheer frustration (not many decent evenings for astrophotography in the UK!) I decided to get into landscape photography, and here I am. I must say, it’s a nice change to be making images in the daylight for a change!