Olympus 500UZ I set the camera at SQ which I took to mean Super Quality . I need a s high a pixel count as possible ,how do I increase it to the maximum?

Hi, jamesepatton, and welcome to FixYa.
I am going to assume that you are referring to the camera's internal storage, as opposed to the camera's removable storage card.
Obviously, to increase the storage on a removable card, one need only purchase another, higher capacity storage card.
To change the camera's internal storage capacity, one needs to reduce the resolution of the pictures one takes.
Example- your Olympus is capable of taking a 4.0 mega pixel sized picture. This size picture can generate a fairly large data file (after all, pictures- like Word documents- are only data files!) While this is what is normally programmed into the camera at the factory, you are not 'married' to this size. In the "Setting" menu of the camera, there will be an option to change the mega pixel (mp) setting. Try lowering it to the next lower setting (say, 3.0 mp) and shoot until the camera tells you it's full. You may have to try several different mp setting, but eventually you'll land on the right one. It's going to depend a lot on what is in your pictures as well, as different scenes and content can affect file size.
A quick note here: Lowering the mp setting will affect the quality (and/or resolution) of the photo. I have found that for a great majority of the photos that I personally take, a 2.0 mp setting is just fine. I am by no means shooting magazine covers or entering my pictures in contests, I shoot 'em, print 'em and save 'em. Just your basic home pictures.
If resolution/quality is important, I would highly recommend that you save ALL pictures to a removable memory card and leave the camera set on 4.0 mp.
Good luck, and let us know how you go!

Yes. Like all rechargeable batteries they don't last forever and four years is longer than I'd expect.

Replace them with new batteries. You need a 3v lithium ion CR-V3 and if you're in the UK I highly recommend buying them from the Small Battery Company, but they are widely available. Avoid generic "no-name" brands as good quality examples are not very expensive.

Please rate my answer if I have answered your question satisfactorily.

It does not work like this.

You can select the quality of the pictures (pixels) with the "F" key.
What you are talking about is "dots per inch", and that has to do with your printer.................,
where you can increase the dpi. 300dpi is not high quality at all !

It sounds like you set the file settings to a small file size - perhaps in order to get more photos on a single memory card. You need to change the setting to the largest file size possible, at the highest quality. The steps for this will be in your manual. If you need detailed instructions and don't have your manual, let me know and I'll lookup your manual online.

No

I only say "no" because an 8 megapixel camera would be taking pictures from 640x480 up to <something huge>x<something else huge>

In any case if you were to ask "HOW" to change the capture resolution, on most camera's you'd go into the camera setup menu, then into the picture quality settings, and usually choose between low, medium, and high... or good, better, best... depends on the camera, but it means the same thing =-]

The 5D has a 12.8 mega pixel sensor.

2 x 4 ft. is 24 x 48 inches, so you have to cover 1152 sq. inches using 12.5 million pixels.

Spreading 12.5 million pixels over 1152 sq. inches means 10,850 pixels per sq. inch. Taking the square root gives you a maximium resolution of 104 pixels per inch (or 'dpi')

Photoshop will allow you to increase the resolution by a process known as 'interpolation' .. increasing to 300 dpi using Photoshop before printing will give a better result.

NB. Depending on your printing process, you may end up dealing with files up to 500Mb in size ....

dpi = quality. On my C-310, the quality settings are accessible by pressing the Menu/OK button, then scrolling left to an icon which can only be described as a fallen over christmas tree (other interpretations welcomed). Once there, select a lower quality and press OK. You'll probably see each quality level described both in terms of initials (SHQ presumably meaning "Super High Quality" and a resolution like "2048x1536". The lower the numbers you select, the fewer dpi and megabytes you will generate. A.

SHQ1 and HQ are two different levels of compression to make the file smaller. This will have a great impact on the image quality. Generally on Olympus cameras, this is what those letters mean: TIFF (highest (best) quality) generally not used. Files are HUGE and takes a long time for the camera to save the image to the card. SHQ (super high quality) you probably wouldn't be able to tell the difference between this and the TIFF HQ (high quality) which is lower quality than SHQ SQ (standard quality) which is lower quality than HQ SQ1 (standard quality 1) which is lower quality that SQ SQ2 (standard quality 2) which is lower quality that SQ1 A 2048x1536 only seems large because most people have their monitors set to 800x600 or maybe 1024x768 (that's what I have mine set at). This will seem to make the image REALLY LARGE! It only seems that way because you have to scroll around to see the image. If you want to print images, you'll want all the resolution you can get. If you want to display them on your screen (slide show,WEB page) then you don't need large images. You would just need to resize them down. However, since you may want to both, getting a camera with a higher resolution gives you the choice to do either. Usually, the higher resolution cameras have better lenses and generally take better pictures. On my camera (the Oly 2100), I always shoot at the highest resolution and the least amount of compression (SHQ on my camera). This allows me to do almost anything with the image. Nowadays, camera media (smart cards) are fairly cheap, HD's are DIRT cheap and CD-Rs are very cheap. If the images are "keepers", then I personally would want to start with the best image possible and store the images on CD.

Quality Pixel Resolution Storable images TIFF 1600 X 1200 1 shot 1280 X 960 2 shots 1024 X 768 3 shots 640 X 480 8 shots SHQ 1600 X 1200 5 or more shots HQ 1600 X 1200 16 or more shots SQ 1280 X 960 (HIGH) 8 1280 X 960 (NORMAL) 24 1024 X 768 (HIGH) 13 1024 X 768 (NORMAL) 38 640 X 480 (HIGH) 32 640 X 480 (NORMAL) 82

The best picture quality setting on the D-390 is SHQ (Super High Quality). The SHQ file is the largest of all four quality settings. The image file size is approximately 786K.