Archive for » 2010 «

Printing your Photos at Home – Useful Tips and Hints for Best Quality


Digital photography revolutionized the way in which we take, view and share photos and also the way in which we print them. Many digital photos never get printed but there are still many of us who prefer tangible paper prints. Photos can be printed using a professional service (in-store or online) or at home. In this article we will give you tips for getting quality prints at home.

A few years ago getting high quality prints at home was an expensive task that was only suitable for semi-professionals who could afford it and who had the know-how. Today low cost printers can generate amazing quality prints and sophisticated software can do most of the processing work behind the scenes. The result is that even amateur photographers can generate very high quality prints by pressing a single Print button.

There are a few simple tips to follow that can help in getting higher quality prints:

Edit your photos: make sure that you print exactly the photo that you want printed. Using simple photo editing tools (such as Photoshop or even Windows built-in Paint application) you can crop a photo to include just the area you are interested in or crop out parts which you do not want in the print. For example you took a photo of a group of friends but on the left corner of the photo there is a bystander that just happened to be there. You can crop the photo to include only your friends and thus effectively eliminate the unwanted object from the print.

When cropping photos always remember aspect-ratio – depending on the paper and the printer you’re using sometimes you’re limited to a certain photo size. For example if you print on a special 4X6 photo paper any source photo that is not in a 4X6 aspect ratio will have to be either stretched, cropped or parts of the print will be left blank. Make sure that you crop your photo to fit a specific aspect ratio if you’re printing on a specific aspect-ratio paper.

More photo processing can be done in order to enhance your prints. It can include red-eye removal (many software packages will do it for you automatically) contrast enhancement and more. For example if a portion of the photo that is important to you is a bit dark – you can “stretch” the color palette in a way that this section will look more lit and detailed. This will usually be on the expense of “overexposing” other portions of the photo that you care less about.

Always remember photo resolution: Every photo is built out of pixels. The more pixels in a photo the higher the photo resolution is. We will not get into details here about the correlation between mega pixels and print quality but a general rule of thumb is that to get good print quality you need 300 pixels per inch or more. This means for example that the biggest paper size a 2 mega pixels photo can be printed on is 4X6 while an 8 mega pixels photo can be printed on an 8X10.

Pick the right printer and paper: there are many different printing each with its advantages and disadvantages. They range in quality and cost. To get the best print quality you should use photo paper in conjunction with a printer that supports such paper. Photo paper and photo printers are more expensive than document oriented A4 Inkjet printers. Choose the printer by evaluating how many prints you will make and how important quality is to you. If you print occasionally for fun an Inkjet printer with normal or photo paper is probably good enough for you. If you print a lot and quality is very important photo paper with a photo printer is the way to go. As a rule of thumb glossy photo paper provides the best quality for color photo prints while matte photo paper provides the best quality for black and white prints.

Printer ink and maintenance: printers need to be setup and maintained. It is extremely important to follow the instructions and to use compatible ink cartridges. High quality compatible ink can make the difference between low and high quality prints. It is usually recommended to buy ink from the same brand as the printer. Some calibration is usually needed when replacing ink and sometimes every few months of use. Follow the instructions for such procedures carefully as a calibrated printer results in much better quality prints than a printer that is not aligned and is poorly maintained.

In conclusion it is very easy to print your photos at home. Just buying a mid-range printer and hitting the “Print” button in your photo viewing software will probably result in good prints that are satisfactory for most consumers. Following some simple tips can enhance those prints to professional quality. As technology advances and prices go down experimenting at home with various photo processing tools, paper sizes, paper types and inks becomes affordable and is probably the best way to find what combination yields the best print quality for you.

Photoshop Files and Formats


People often ask me: What image file formats will Photoshop open or save in? What are the advantages/disadvantages?

Photoshop has the capability to open and save many different graphic files. Here are some of the most popular ones.

Note: When you open an image file other than a Photoshop one, that image will default to the background layer.

.psd, .pdd, .eps

Photoshop File. This format preserves the information in all the layers. If you’re going to continue working with a picture, this is the best format to use. File size can be quite large, however. Note: It is advisable to save your work in the most up to date Photoshop format available. For example: if you have Photoshop CS and are sent a Photoshop 7 file, you should save it as a Photoshop CS file to preserve any elements that may not be supported by Photoshop 7.

.jpg, .jpeg .jpe

This format compresses the images, so that information (details and colour subtleties) are lost. You can choose how much you want to compress the image. Good format for use on the web. Small file sizes. Millions of colours.

tif, .tiff

Common in use with early scanners. Will produce high quality images, but very large files. Not for use on the web.

.gif

Pronounced both “Gif” and “Jif”, this file is one of the most popular for web graphics as it loads quickly. 8 bit format (256 colours max.). It has possibilities for transparent colour and animation.

.png

New format for use on the web that is intended to replace both gif and jpeg. Compressed, millions of colours, transparencies. It compress in a different way than jpeg, and has advanced possibilities, such as alpha channel (opaque or partly transparent colours).  In 8 bit (256 colours) mode it compresses better than gif.

.bmp

Windows bitmapped image. Used by Microsoft Windows applications. Good quality, large file size. Not for use on the web.

.wmf

Windows MetaFile. Useful for clipart, and can be used to make large area, small sized background files.

.pcx

Older general purpose format. Practically obsolete now. Not for use on the web.

.psp

Internal format for Paint Shop Pro, useful if you want to swap files between these two applications.

.pcd

Kodak PhotoCD format, used with Photo Developing – although most photo processors will save your photos as jpegs if you ask them to.

.pdf

Portable Document File. Adobe’s file system that allows electronic cross platform sharing of documents.

So what’s the best format for web graphics: gif or jpeg?

The general rule of thumb is to use gifs for diagrams, line drawings, illustrations, and images that contain large areas of flat colour, and jpegs for photographs and images with continuous colour tones. The jpeg format has a very good compression rate, but compression reduces the quality of the image, so it’s best to experiment with the tools in Image Ready until you have the optimal quality/file size. The gif format, on the other hand, has a smaller file size – but a limited range of colours.

Make Money With your Photos


So you learned to take a great picture and now you would like to make some cash from them (and of course, share your artwork with the world). Here are three ways you can go about this without costing you a fortune.

–Create your own products using your photos, such as framed prints, greeting cards or t-shirts, and sell them on Ebay. Ebay receives millions of visitors eager to buy, provides easy step by step instructions on getting you set up (their website also offers advice and tips on selling) and costs are very minimal. You have the choice to auction your product or let your customer “buy now”. Your biggest investment in this is producing your products.

–Sell products on Cafepress. They provide the products (framed prints, t-shirts, coasters, mousepads, clocks, teddy bears and much more) which you will apply your photos to (just upload and add to the product you choose) and they provide complete service (orders, delivery, complaints). You build your store (through their website) either using one of their templates or you can customize your own using HTML. They have a base price for each product and you set the price above that. You are paid the price above the base price. You can open a free store or you can pay a small fee each month and receive more benefits. Thou your products will appear in their Marketplace (which they receive millions of customers) so will millions of other products. So your biggest investment here is to advertise your store. I am not going into advertising here but there are free and low cost ways of doing this (read articles regarding this matter).

–Submit your photos to online stock agencies such as Shutterstock, Fotosearch or iStockphoto. Stock agencies house large files of images and markets the photos to potential clients. You are paid a percentage or a set price of each sale. You give these clients permission to use your photo (such as in their magazine or on their personal website) but they can not resell to profit from.

Whichever way you decide to sell your photos, the better the resolution your pictures are, the better the quality. To achieve this, first you must have a high megapixel digital camera. This does not mean you need to buy the top of the line. A 5 megapixel is quite sufficient. Second, your picture should have a high DPI (dots per inch) such as 300. If you want a high quality 8×10 inch picture, you will multiply the DPI by the inch. For instance, 8×300=2400 and 10×300=3000 so you want your picture size (resolution) to be 2400×3000 pixels. You can always decrease the size of your picture but never increase the original size.

Before joining any program, be sure to read their terms carefully. I wish you much success!