Thumbnail Size too large

After purchase of new camera

[Powdork]

I have an image gallery with several thousand regional photos. For some better action photography I just got a new camera with some better features. It is a Konica Minolta Z3 4 MP 12x Opti. For some reason, when I resize images using photoshop either by hand or using the web gallery creator my thumbnails are coming out at 65 to 75Kb even at 100px X 75px. With my previous cameras the thumnails were about 12 to 15Kb at 130px X 98px. Any ideas?

I'm off to see what happens with fireworks.

[tomda]

Check the dpi, just a though. May be your new camera has a larger number of pixels per inch in default than your previous one?

[Powdork]

No, I was resizing it by pixels.
Is there some meta data captured that is being passed along. When I do "save for the web" in Photoshop it makes a small size thumb, but I can't find a way to incorporate that into the gallery creator. I'd hate to have to save them all by hand.

[lZakl]

Powdork,

Just curious what your color stteings are when you save for web? Also the "Quality" setting will affect file size. These can have a drastic outcome on filesize believe it or not.

Just my 2¢ :0)

-- Zak

[Powdork]

I wasn't using save for web. I have been using
File ->Automate -> Web Photo Gallery
This resizes the photos into a large and thumbnail sizes of my choosing and creates a gallery, slideshow, etc. For some reason it doesn't use the save for web function even for the thumbnails. I'm using 6.0, on another forum a user reported that his thumbnail created using cs and cs2 were only 1 to 2 kb, but I don't know how much exif data was attached to his to begin with. Here are the answers I have received elsewhere.
1. In photoshop open the picture select all-> copy-> new-> paste. Photoshop does not copy exif data to the clipboard.
2. Save for web. I haven't figured out how to do this en masse, though newer versions than 6.0 probably do.
3. The one I chose. Find a 'jpeg stripper' by searching your favorite engine. This extremely fast function took 65 kb from every Knonica z-3 picture (12 kb from my olympus stylus and other 3 mp cameras) and it does as many as you like at once. If you may need the exif data later you should backup your photos in a separate folder first(or preferably removable storage).

It is interesting the difference in the amount of exif data between the cameras. Another difference may be the memory card since the new cameras has one of them newfangled high speed sd cards.

[topr8]

>>2. Save for web. I haven't figured out how to do this en masse, though newer versions than 6.0 probably do.

do you know how to use actions?

you should be able to write an action and batch process whole folders of files with a single click (available in ps 6.0)

[Longhaired Genius]

I don't use photoshop but the size of a jpeg file depends on the pixel size and the jpeg quality. Look in the photoshop docs for a way to reduce the "quality" of your thumbnails.

[too much information]

You could always create an action to thumb the images using 'Save for Web'.

I never had much luck trying to get small images in Photoshop. I ended up finding a freeware thumbnail program (thumbs plus) that does a really good job as a batch. Then you can use the web gallery feature with the thumbs.

The freeware program strips the EXIF and ITPC data from the image and at 400px max dimension the largest image file I usually get is around 40k but most are around 20-30k.

[Powdork]

you should be able to write an action and batch process whole folders of files with a single click (available in ps 6.0)

That was the kind of answer I was looking for until I found the jpeg stripper, which was exactly what I needed.

I don't use photoshop but the size of a jpeg file depends on the pixel size and the jpeg quality.

Yes but there is more. When you download images from your digital camera as jpegs you get a bunch of other stuff besides the information necessary to render the picture. You get a file with all your camera's settings for the picture. You may get additional data specific to the viewer that comes bundled with the camera. Usually, a thumbnail is embedded along with the image for your lcd viewing. I never considered it a problem until I got this new camera and the extra data was 65 kb. That means a thumbnail at 80X60 pixels saved at low quality was 66 kb. My old camera was adding 12 kb to every picture. I never considered that a problem but since the new program is so effortless I will strip all my images which will save about 45 mb in storage. In addition, some of the larger gallery indices have 30 thumbnails. Those pages will lose 360 kb which can be a big difference in download time over a 56k.