Image resolution

Hi what resolution are the images ?

Hi.

The pics are usually 600 x 800 and 200 ppi

I think I've used larger ones in the past, like 800 x 1200 or there about.

Well 600x800 pixels or 800x600 pixels is plenty big enough to fit a window on most peoples PC's and certainly laptops.

Rarely go above that more often a bit less cannot say I noticed any deterioration when I moved hosting the pictures from eBay to Auctiva.

I do all my processing before uploading rather than online at Auctiva so it is quicker could that be a factor in your case ?

Usually I find a sort of grainy effect happens to red areas in particular when shrinking a jpg format picture but that happened regardless.

I do all my preposting picture editing before posting.

After a little experimentation, I seem to have discovered that I was converting the images to gifs, instead of leaving them as jpegs. Also I think that I was resizing them myself before uploading in order to speed them loading on the page. Physically resizing them seems to cause problems as Auctiva resizes them after upload.

I am now just leaving my images as jpg and not resizing them anymore.

Thanks for all assistance.

Hi as far as I know only the standard size images for the header, gallery and in the listing as standard size are resized down by Auctiva. The supersized are the images as uploaded, there is a maximum size but larger than you were using (600x800).

When a buyer clicks on the standard image they will be taken to the supersize images so any loss of resolution at that size is not really a problem.

jpg format is a lossy compression system and it appears to me that even more loss and distortion can occur when you resize images in that format. Probably best to resize in a raw format like .bmp if your camera can output that format and then compress to jpg.

Yes probably best to leave them as jpg rather than gif.

You should be OK resizing the JPG images from your camera, mine come out of the camera at 2816x2112, jpg, I always resize them to 1024x768, using a graphics editor (GIMP), it has the option to keep original resolution, and there is no noticeable loss of crispness or clarity. You definitely do NOT want to save the as GIF. For a photo, it will most likely be larger in size and not as clear.

I have gotten the best results by simply staying in the jpg format and resizing the pic to below Auctiva's maximum of 1024x768, and adjusting the file size (compression, or image quality) before uploading. Otherwise Auctiva will downsize the image for you to 1024x768(taking forever, or not at all) and also will arbitrarily reduce the file size at the same time, sometimes too much, resulting in 'grainy' or slightly blurry looking photos. As long as you upload below this maximum size, you prevent Auctiva from reducing the file size, as it will upload whatever file size you wish the original to be.

I like to upload at 800x600 with a file size of about 100kb, which can be done by setting the quality to about 80% when saving your downsized pic. Acceptable file size, or image quality, of course depends of the level of detail you require for any given picture, and any differences can usually be determined by side by side comparisons.