Welcome David.

You seem to be muddling megaPIXELS and megaBYTES. They are not the same thing. The former is the number of little dots used to make up a picture, the latter is the amount of disk space used to store the image.

The amount of disk space used to store your image depends on the format of the file you use. As John said, RAW takes up more space but retains more information. JPG takes up a variable amount of space depending on how much compression is used: more compression, smaller files but poorer quality. Try setting the camera on a tripod and taking the same photo using RAW and the three levels of jpg compression and then comparing the file sizes.

Having a bigger sensor (i.e. 14 megapixels v. 10 megapixels) mainly helps in two ways (1) you can make bigger good quality prints and (2) you can crop the image more drastically and still get reasonable sized prints.

Hope this helps!

Cheers, Kris

Hi Rhoda and welcome. I missed out on free postage from SRS... I went there instead

Best wishes, Kris.

I have a nice little compact by A.N.Other manufacturer which I was given for Christmas before I got my dSLR. It doesn't get so much use now but I find it great for recording stuff in museums (as a sort of visual memo) and when the lady love and I want a photo of us in front of.... whatever. Ordinary people get a bit put off by an SLR with a battery grip and all that. I usually have it tucked into my rucksack somewhere.

Cheers, Kris.

Are we ever going to live this one down?

I do mean the real one, the sticky white one on a roll...

I wont be lending you my Horseman then...

Actually, I find using old kit (a) fun and (b) good discipline. Using digital has made me lazy!

Cheers, Kris.

They will send to Spain but not sure of the free postage! Give Chris a ring. I might be going there tomorrow...

BTW could an Op move this thread to the right forum? Thanks.

Perhaps by scare-mongering they hope to sell more Pentax units?

On Matt's advice I got a AF160 to trigger the 360 in slave mode. Using the built in flash is unreliable as the pre-flash triggers the slave and then there is no omph left for the main flash. I found that the AF160 was better than the built in flash for naff snapshots too even though they are nominally about the same guide number I believe.

Cheers, Kris.

My Tamron 70-300mm turned up today. Too late to use it in anger but seemed alright snapping stuff in the kitchen Noisy thing though but for 43 quid, I cannot complain. I have never had a 300mm before so it will be interesting to play with. It seems to consistently under-expose and I had +0.7EV dialled in all the time. Is this a "feature" of this lens?

Cheers, Kris.

Quick answer as I have a class to teach.

Pentax 55-300mm better but Tamron cheaper. Mixed views as to how good the Tamron is, Pentax seems very good.

Yes, SRS send post free to members.

Camera shake: at 300mm very difficult to hand hold, antishake or no. It can be done, and many people here have done so, but best advice is to use a tripod, or at least a monopod.

Cheers, Kris.