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4
votes
3answers
190 views

Where is a camera's preview image stored, when shooting in RAW?

When you take pictures in RAW, the camera stores a preview image (possibly jpeg) that it shown on the screen using white balance and other adjustments set in the camera. Where is this information ...
4
votes
3answers
299 views

Can I enable pixel binning on Canon PowerShot G1X?

On my camera, a Canon PowerShot G1X, I can select picture sizes from S to L. Now I wondered, if I select a smaller picture size, that would theoretically lead to more sensor surface per pixel, ...
1
vote
3answers
105 views

Saving 24MB Jpeg

Have a EOS 60D that does 18Mpixel. An expert said I should use at least 24MB pictures for stock photography. My 18Mpixel Jpeg at 72 DPI are between 5MB and 14MB. What is the purpose of a 24MB file? ...
3
votes
5answers
802 views

How do I constrain filesize of a bunch of photos?

I have a bunch of photos of jewelry that I need to upload to a website. Unfortunately there is a 2MB file size limit. Most of the photos are JPEGs over 3MB. I want to keep the aspect ratio, meta ...
0
votes
1answer
127 views

Can a 2 mp camera produce a 2 mb sized file? [duplicate]

Yesterday I was taking some photos with my old phone, the Nokia C3-00. It has a 2 megapixel camera and usually creates images somewhere between 400kb - 800kb in size. Yesterday, though, it produced an ...
0
votes
1answer
63 views

Is this file size adequate for jpeg images?

While my photos usually are ~ 150kb average, I find some to double that size under the same settings. Specially Black & White photos. Is this size normal, because of the amount of different tones ...
1
vote
2answers
126 views

Should two identical digital pictures of the same resolution and format have the same size?

I apologize if this is the wrong stack exchange site, but I thought my question might be too specific to photo encoding for stack exchange. I recently recovered a host of digital picture files from a ...
2
votes
3answers
558 views

Why does simply saving a JPEG at 100% quality in Photoshop increase filesize?

If I take a picture taken with my EOS 60D, put it into Photoshop, edit it as I wish and save it as JPEG with maximum quality, the file goes from 5 to 12 mb in size. Obviously if I didn't increase the ...
5
votes
6answers
23k views

How to reduce file size without losing quality or resolution?

I have 2,300+ pictures that I want to transfer to my phone but on their original size they take up a lot of space (6.44gb) I would like to trim is down to without sacrificing quality or resolution. I ...
3
votes
1answer
127 views

Why is there such a big difference with these JPG file sizes?

I have 2 nearly identical JPG images that have been processed externally, but one file is much larger (in file size) than the other. I have been looking at all the metadata and embedded information ...
0
votes
4answers
4k views

Reduce photo size to less than 20kb [duplicate]

I am trying to reduce image size to less than 20kb (Dimension 940*884 )for a eCommerce website. Using features of photoshop cs6 I am able to reduce image size to around 65kb. Below which the image ...
7
votes
9answers
67k views

How to reduce the file size of my photos (to under 15 MB)?

I don't have a "Pro" account on Flickr, just the free one, so my photo uploads are capped to 15 megabytes/file. After post-processing, my photos end up being too large to be uploaded to Flickr. I do ...
0
votes
0answers
40 views

Does this appear correct? Comparison of PSD & TIFF file sizes when using adjustment layers. [duplicate]

I've been investigating file sizes after noticing my 16 bit TIFF files grow enormously after adding adjustment layers (saving with layers, not flattening). Here's what I found: File #1 (0 layers) ...
1
vote
1answer
271 views

Why do my tiff files balloon in size when saved with 1 adjustment layer?

I'm having an issue with tiff files that I can't figure out. Here's an example: I open a 40 mb tiff, add one curves adjustment layer, and save the file normally (i.e., using LZW, Interleaved, IBM PC, ...
1
vote
1answer
2k views

Check free space on Nikon DSLR

Currently I'm using a 4 GB memory card for shooting RAW on D5100, but how to know the available free space on memory card from the camera ? As the number of shots remaining is so misleading !
1
vote
1answer
2k views

How to resize images in Lightroom to a particular file size?

How would I create a preset to export files to a given file size? I need to be able to export a 2mb file for a realtor.
2
votes
4answers
4k views

What image quality is lost when re-saving a JPEG image in MS Paint?

Has anyone ever noticed that if you open a image in mspaint (.jpg, .jpeg) and then just save it, the image size is reduced by many folds. I use this method to reduce the file size. However, I am not ...
3
votes
2answers
237 views

How do I prevent photoshop shrinking my RAW files?

Converted a RAW image to DNG but photoshop resizes them from 30mb to 8.5mb ?
1
vote
2answers
274 views

How do I convert/re-compress select photos in Lightroom in-place?

As my Lightroom catalog grows there are some photographs I would like to preserve, but where I don't need all the editing latitude offered by RAW. I know I can convert them to DNG, but are there ...
-2
votes
3answers
482 views

If I use an iPad mini to back up RAW captures, how many files can I store?

I am thinking about acquiring a 64GB iPad mini and other than its other purposes, use it for back up for RAW captures on my Nikon D80 while on vacation. I'm wondering approximately how many RAW files ...
12
votes
2answers
438 views

Why is the amount of photos that fit on one card dependent on ISO?

I have a Canon 550D with a 16GB SD card. I noticed that, when in P-mode, if I choose an ISO of 100 I can shoot 595 raw files on an empty card. If I choose an ISO of 200 this is 590. And if I choose ...
7
votes
4answers
3k views

Why are two pictures that are the same dimensions/dpi such different file sizes?

I am working on a project where two my images must be AS SMALL AS POSSIBLE. I have scaled two images to the same dimensions/dpi and I've checked the color profile in Photoshop CS6 and they both look ...
3
votes
2answers
6k views

Reasonable file size for printing high quality photography as A3 posters?

I bought some photos and need to send them off for printing. The printing company asked for the final files to be in PDF format, so I've converted them using Illustrator and Photoshop. I also added a ...
1
vote
5answers
2k views

How does optimizer software reduce file size without reducing resolution?

There are numerous applications for reducing filesize. Most of them reduce resolution (e.g. from 300dpi to 72dpi) or reduce height and width. I tried http://www.imageoptimizer.net/ Surprisingly, when ...
7
votes
3answers
2k views

RAW to TIF conversion creating GINORMOUS TIF Files

My wife is a photographer (Nikon D700, edits in Win7 Adobe CS5 suite) and mentioned yesterday that she's out of hard drive space. When I inspected, I found GIGANTIC .TIF files on her drive, ranging ...
0
votes
3answers
591 views

Highest quality vs smallest file size for email

I'm intending to create some photographic images for printing. They'll be used to hang on a wall but will be quite large (80 - 100cm square). Obviously I want the quality to be as high as possible, so ...
3
votes
2answers
3k views

Nikon d5100 memory card capacity for NEF+JPEG(fine)

I just bought my first dslr (Nikon D5100) and I'm looking for an sd card to go with it. I would rather have just one card so I thought about 64GB SanDisk Extreme (45MB/s), however I don't know if I ...
4
votes
2answers
349 views

What is the effect of long exposure on file size?

Is it a rule that long exposure will produce a larger size file compared to a shorter exposure? It seems logical, since you are writing more data to the memory card when you expose for more time. ...
1
vote
1answer
983 views

Can a Pentax K-5 record more than 4 GB of video with an SDXC card?

When using an SDHC card, the Pentax K-5 can only record up to 4 GB of video in a single clip. This is said to be because SDHC cards use the FAT32 file system, which has a 4 GB maximum file size. At ...
12
votes
4answers
4k views

How to avoid jpeg compression artefacts when saving photos in web resolution?

When I save a web-resolution image (for example, 1920×1024px), flat areas tints often have damaged shades of color. I'm saving in Photoshop CS4 with quality 2 in standard mode, because I need the ...
6
votes
1answer
457 views

Why are my photos taking too much memory?

I have a Canon 5D mark II. The weirdest thing happened today. I was shooting with a 4 GB memory in Raw and Jpeg and was only able to shoot 34 pics. I looked at my settings and couldn't figure out what ...
7
votes
4answers
1k views

What is a reasonable file format for film scanning?

I'm looking to use my CanoScan 8600F to digitally archive the photos I've shot on film. The issue I've stumbled on is deciding on a file format. Ideally I'd like something that is lossless but with ...
4
votes
2answers
4k views

Why does Photoshop show my JPEG files unusually large?

I recently opened a jpeg and a tiff of the same subject in Photoshop CS3. They both were made with a Nikon D300, and both had a file size of almost 35mb. If I checked the image info it said the jpeg ...