Bay Photo Lab - bayphoto.com

Preparing Your Files

If you use any of our ordering software we recommend that you do not resize your files, simply send them as they are and we will resize your files as needed (see below for exceptions).

If you would like to color correct your own files, please use our Economy Services and see guidelines in color management. If Color Correction is selected an experienced technician will view and color correct your file before printing.

Following are further particulars:

  • We prefer JPEGs but we also accept TIFF's and PNG files.
  • We prefer sRGB and Adobe RGB, but we accept other RGB color spaces.
  • Only one file is necessary per image, even if multiple print sizes are ordered from that image.
  • If you have done Photoshop® work, please discard any extra channels and be sure to save using highest quality JPEG settings.
  • We prefer that you leave your files at the original file size but in some cases, where those files are much larger than what is being printed, ie. for Proofbooks and proofs, reducing the file size will provide a quicker upload.
  • If nonstandard print sizes are needed, canvas the file in Photoshop® and then order a proportional print size, or use the "Fit" option in Bay ROES.
  • Keep in mind that our printer will resize each print at the optimum resolution for that size.
  • We provide color corrections to your files unless you order using Bay ROES Economy or indicate otherwise when ordering in Bay ROES Emerge.

 

Accepted File Types

We prefer JPEGs but we also accept TIFF's and PNG files.

JPG

  • RGB Color
  • 8 Bits/Channel
  • Format:
    Baseline ("Standard")
    (Not Progressive)

PNG

  • RGB Color
  • 8 Bits/Channel

TIFF

  • RGB Color
  • 8 Bits/Channel
  • No un-flattened layers
  • No alpha channels
  • Image Compression: NONE, LZW, or ZIP
    (Not JPEG compression)
  • Pixel Order: Interleaved (Not Per Channel)

 

Naming Your Files

It is very important that you do not use special characters when naming your image files. Using Special Characters could cause your order to be corrupted.

Special Characters include the following: ~ ` ^ : & * ( ) | ' " , ? © [ ] < >

 

Color Correction vs. No Color Correction

Color ManagementWe have a highly trained staff of Color Correction technicians to color correct your images. This includes adjustments for Lightness/Darkness, Red, Green, Blue, Saturation and Contrast. Each image is viewed and color corrected individually by hand. We fully guarantee all of our prints ordered through our Full Color Correction Version of Bay ROES: Bay ROES Professional.

Our Economy Version of Bay ROES does not include color correction by one of our Technicians. This version is for those of you that prefer to do your own Color Correction. We calibrate our machines regularly throughout the day to insure consistent results. For No Color Correction, please use the Economy Version of Bay ROES. In the Bay ROES Economy Version you will find our free Evaluation Print Product. This allows you to order Evaluation Prints at no charge. For this Evaluation, use a variety of images, reflective of a wide range of your work. When you get your free Evaluation Prints, compare them to your monitor. Remember that the lighting in your print viewing area is critical.

Color Management & Calibration for Photographers who Prefer to do their Own Color Corrections

When using our Non Color Corrected Economy service, in order to insure that the colors on your monitor match the colors in the prints you receive from Bay Photo, it is best to have a properly calibrated and profiled monitor. You can try some evaluation prints without calibrating your monitor but you will get more consistent and repeatable results if you do calibrate.

Photoshop Settings

Additionally, you need to make sure that you are embedding an ICC profile into the files you send to BAY PHOTO. We recommend that you use either sRGB or Adobe RGB (1998) as a working colorspace.

Below are the directions for proper setup of your Photoshop Color Settings:

    1. Open Photoshop and go to Edit > Color Settings in the menu bar. If you are using Photoshop CS3 or earlier on a Mac, the menu location is Photoshop > Color Settings.
    2. Go to Working Spaces and for RGB Files select either "sRGB IEC61966-2.1" or "Adobe RGB (1998)"
    3. Under Color Management Policies next to RGB select “Convert to Working RGB"
    4. Next to Profile Mismatches check “Ask When Opening” and “Ask When Pasting”

Whenever you open a file that is in a color space other than your working space, Photoshop will prompt you to convert to the working color space. If you would rather not be prompted when opening a file with a different imbedded profile than your working space, you can uncheck the “Ask When Opening” box and the “Ask When Pasting” boxes next to Profile Mismatches. Photoshop will then apply your working space to files that are in a different color space or with a missing profile.

VERY IMPORTANT: When you save your files, make sure to check the “Embed Color Profile” checkbox in the Save dialog box or your working profile will not be embedded and we will not know the colorspace of your files leading to inaccurate color.

 

Recommended File Size

Digital Cameras measure their resolution in pixels. These pixels are NOT measured per inch, but are a total count of how many pixels were used to capture the entire image. If you take a digital photo at 1600x1200 pixels, the total pixel count of the captured image will be 1,920,000 pixels. Whether you print this 1600x1200 image as a 8"x10" photo or an 16"x20" photo, the original file will still have 1,920,000 pixels.

Photos intended for print should be taken at the highest [pixel] resolution possible for the best print quality. Lower resolution photos printed at larger sizes may stretch the pixels beyond the point where they look clear and sharp however it is amazing how large you can print a small file that is sharp and properly exposed. View your files at 100% in an image application such as Photoshop, this will give you an excellent representation of how the file will print.

 

Print Size Minimum Image Resolution

Print Size Pixel Dimension @250 dpi File Size
@ 250 dpi
Minimum Pixel Size
to Yield Good Prints
Minimum File Size
to Yield Good Prints
4x6 1000x1500 4.29 Megs 200x300 1 Megs
5x7
1250x1750 6.26
250x350 1.75
8x10
2000x2500 14.4
400x500 3.5
8x12 
2000x3000 17.2
550x700 4
11x14
2750x3500 26.6
700x1050 5
16x20
4000x5000 57.3
1200x1500 9
20x24
5000x6000 85.9
1300x1560 12
24x30
6000x7500 128.8
1550x1937 17.5
30x40
7500x10000 214.6
1625x2166 20


*File sizes are full image sizes not compressed jpeg size. In other words your jpeg size will be smaller than the file sizes listed above. To view and display the file sizes listed above, open the JPEG in an image application such as Photoshop to check the Image Size.

What is an image histogram?

A histogram is a very powerful measuring tool that graphically represents the data within an image file. Having an understanding of a histogram will enhance your camera’s exposure which determines the pixel values of your image. Having properly exposed images is the #1 thing to improve color management. Understanding Histograms: Histogram Exposed.

File Size Calculator

Calculate Size of a File in Megs
  • What is the resolution? dpi
  • What is the width? inches
  • What is the Height? inches

    = Megs
 
Calculate the Resolution of a file
  • How big of a file in Megs? Megs
  • What is the width? inches
  • What is the Height? inches

    = DPI

 

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Bay Photo Lab offers professional photographic printing, press printing, canvas wraps, mounting and photo finishing, MetalPrints, & other high-quality pro lab services to photographers around the world from our state-of-the-art lab in Santa Cruz, California.