Questions tagged [file-size]

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2 answers
566 views

Which JPG has better quality? And which Exif Byte Order is better?

I have two folders of "the same" JPG images that I made over 10 years ago, when I was a kid, but the size of photos in one folder is different than the other. The photos were made on my old ...
0 votes
1 answer
202 views

Why has my tiff file converted to jpeg and shrunk to almost nothing [closed]

i recently had a photograph of my art taken by a photography studio and the file size was huge, over 100mb. Here are the details of that I then cropped the image myself so it could be used for ...
0 votes
2 answers
433 views

Does JPEG compression reduce actual image size?

In this article it says "Generally speaking, the algorithm behind this format makes some trade-offs to lower the image size." Just wanted to check that this is referring to image file size, ...
-1 votes
3 answers
115 views

How can I cut a long image into smaller images so that each image file size is below some threshold (e.g., 2 MiB)?

I have an image with a 1920x16883px resolution: I'd like to cut it into images of 1920xYpx resolution, with ...
3 votes
2 answers
188 views

Image File Size Question

Here, Wikipedia gives an example of 5 images with the same pixel dimensions of 300 pixels by 225 pixels, but with differing bit depths from 1 bit/pixel all the way to 24 bits/pixel. I thought that to ...
7 votes
4 answers
6k 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 ...
-1 votes
1 answer
376 views

What are the standard pixel, inches and megabyte sizes for fine art photography?

I know that 6x4 inch photos were popularized by 35mm cameras, which were then superseded by 4x3 aspect ratio in digital cameras, while 16x9 has taken precedence in general because of widescreen ...
3 votes
3 answers
9k 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 ...
11 votes
7 answers
11k views

Two EXACTLY the same .jpg images with one image more than twice the file size of the other - Why?

I have a number of .jpg images which are EXACTLY (dpi, frame size, image) the same - except one is more than double the file size (in bytes) of the other. How can this be? When I zoom in by say 700% ...
1 vote
1 answer
107 views

Looking for a good workflow to deal with large file sizes after Photoshop

I recently upgraded to a Nikon D850 which produces RAW files on the order of 37MB in size. I take these as DNG files into Lightroom. When I edit an image in Photoshop and then return to Lightroom with ...
4 votes
3 answers
485 views

Image properties for social media?

My experience of social media is extremely limited, but I have occasionally been asked by a group to send them an image for use on their media. Sometimes as non-technical people only used to mobile ...
8 votes
10 answers
80k 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 ...
0 votes
2 answers
666 views

How can I get the largest MB and highest picture quality from my Panasonic TZ100

I am an amateur (have been for many years) who is trying to take photos of jewelry for poster quality print at A2 size. The image of the jewelry needs to be able to look good at about 1/3 of the size ...
3 votes
1 answer
495 views

Is there a way to speed up working with large files in Photoshop? Like proxy editing?

I am currently using a camera that produces 60mp+ raw files which I pre-correct in Lightroom and then load into Photoshop for final editing. As I have around 10 layers with various corrections, the ...
3 votes
4 answers
92k views

How can I check free space on my memory card on a Nikon DSLR?

Currently I'm using a 4 GB memory card for shooting RAW on D5100, but how can I find the available free space on memory card from the camera? The number of shots remaining is so misleading!
62 votes
15 answers
26k views

Aren't all digital images ultimately just pixel values between 0 - 255?

I have a few incredibly basic (stupid?) questions about images; specifically, image formats and pixel values. Forgive me, I'm not a photographer. I'm just someone that works with images, and to me, ...
7 votes
10 answers
188k 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 ...
11 votes
8 answers
31k views

What is the "optimal" file size of JPEG images with respect to their dimensions?

I plan to write a script that will scan 100,000+ JPEG images and re-compress them if they are "too big" in terms of file size. Scripting is the easy part, but I am not sure how to categorize an image ...
0 votes
2 answers
647 views

Trying to understand losses in jpg compression

I have a bunch of jpegs taken with a Nikon D3200 at 6016 x 4000. They weigh between 9M and 12M each. To try and reduce space a bit, I compressed copies with the default Windows utility, and the new ...
0 votes
2 answers
976 views

Why do different ISO images have different file sizes? [duplicate]

I set the ISO on my Canon 6D to 200: 1081 estimated shots remaining. I set the ISO to "auto": 728 estimated shots remaining. I'm shooting in RAW, if that makes a difference.
3 votes
1 answer
525 views

Should I resize photos before or after image optimization?

I am a software dev who appreciates stunning imagry in sites I build, but am also very conscious of page size. My workflow has me adjusting image sizes to the maximum resolution they will be displayed ...
1 vote
2 answers
240 views

Why is my Sony A57 creating low res JPGs?

I have used a Sony A57 since they became available. I always have the resolution set for 16M and FINE for JPEGs. I just took an important set of photos that were intended for large blow-ups. But ...
6 votes
3 answers
9k views

JPG and file sizes - BASIC facts for dummy

Am I losing quality of the pictures when the size of the file drops? My daughter is sending me some JPG pics to edit for her. The file sizes start around 11MB & 3264x4928. After I do some mild ...
0 votes
1 answer
166 views

Do high export resolutions compromise image safety? [duplicate]

I specialize in macro photography and I've recently begun to export in 300-350dpi, as I find it does a better job of representing details (crucial to my work). However the file size is small, eg. ...
0 votes
2 answers
306 views

How to save pictures for websites

I put HD pictures on my website and it takes a lot of time for them to load. I've then tried re-saving them using Photoshop CC as jpeg and choosing 1 in the compression scale (going from 1 to 12). ...
3 votes
2 answers
350 views

How to resize images in place in Lightroom

Generally, I take and store all of my images in RAW in Lightroom. If I capture a beautiful moment, I want to be able to access all of that beauty at any time in the future. But there are exceptions. ...
0 votes
1 answer
1k views

What's the Largest File Size that PhotoShop CS 5.1 can Handle?

I'm building a large landscape montage using about 50 RAW images at 16Mb per image. I've successfully managed processing montages before that were 1.5 Gb but over the course of the few hours it took ...
2 votes
5 answers
2k views

How to know if a picture has too many pixels?

I have pictures from three sources, a Galaxy note 3 phablet, a Ricoh WG-M1 sports cam, and a Canon EOS 600D. I did set the EOS 600D to store as jpeg, and my pics are typically between 2.5 and 4.5 MB, ...
4 votes
2 answers
5k views

What application can rotate a TIFF without re-encoding it?

This is a followup to a question at Apple.stackexchange.com, Why does rotating a TIFF in Preview increase the file size? One thing I don't like about Preview.app is that even something as simple as ...
-1 votes
1 answer
2k views

Optimal DPI Setting in Olympus OMD EM5 mii? [duplicate]

I had been using the default 350 dpi, but the resulting files are too small to sell to most stock photography sites online. For a standard print at 300dpi, they are great. A bit low for my metal art, ...
7 votes
5 answers
6k views

Does the detail in an image affect how large the image file is?

I just took two photos on my smartphone. One of a table surface with nothing on it and another of a cluttered table top full of detail. The clear photo was 3.5 MB and the cluttered one was 5 MB. How ...
0 votes
2 answers
4k views

How to increase/decrease image size without changing dimensions or dpi

I have 50 photos with different size from 50 KB to 70 KB. I want all photos tobe in 60-70 KB size without changing the dimensions, dpi, or bit depth.
-1 votes
1 answer
176 views

How can I automatically downsize images which have more pixels than needed for the actual resolution? [closed]

Many factors affect the true resolution of an image — the actual detail resolvable — including lens quality, sensor size and technology, noise and noise reduction, motion blur and camera technique, ...
1 vote
3 answers
2k views

Are 24MB JPEGs sufficient for stock photography?

I have an EOS 60D that has 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? ...
7 votes
1 answer
7k views

Why does file size increase so much when converting from RAW to TIFF?

I have been converting .CR2 files (Canon's RAW format) to TIFF files to make a timelapse video in Photoshop. Upon doing so I was astonished to realise that the file size rocketed from 23.9MB in the ...
0 votes
2 answers
1k views

Files from my camera are very large: does this present any problem?

I have a Nikon D3200 camera. When it takes pictures in high resolution, sizes can be up to 6016×4000 pixels. Is there any problem (apart from big files) having the pictures at this resolution? Would ...
1 vote
2 answers
382 views

In Photoshop Elements, how much is image quality reduced if I re-save a previously saved "small" JPEG as a "large" JPEG?

Back story: I took a picture of a flower in RAW. Pulled it into ACR in PSE 12, moved it to the Photoshop Elements editor, made a few edits, then saved it as a "small" JPEG. When saving a pic in PSE, ...
7 votes
4 answers
7k 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 ...
1 vote
1 answer
4k views

How can I target a specific size in megabytes when saving a JPEG in Photoshop?

I need to save several files as 20mb jpgs. When I save an image in Photoshop CS5 at 20mb, then go to that saved file in my folder, it shows as a much smaller file. Is there a formula for hitting that ...
4 votes
4 answers
30k 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 ...
5 votes
2 answers
1k 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
3 answers
748 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, ...
3 votes
5 answers
4k 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 data,...
0 votes
1 answer
5k 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
1 answer
167 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
2 answers
2k 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 ...
3 votes
1 answer
2k 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
4 answers
22k 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 ...
2 votes
1 answer
1k 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
1 answer
15k 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.