Have you wondered what the difference is between the Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens and the Canon EF 70-300mm f/4-5.6 IS USM Telephoto Zoom Lens, besides the $400-500 price difference? Well, I’m here to help.
How much will you be using the lens? What types of things will you be shooting? Will you be using a tripod? How much do you want to spend?
The above photos were taken with the EF 75-300mm f/4-5.6 III, you can generally find this lens for under $200 and as I think you can see from the photos it is a very good lens. It uses a DC motor instead of a USM to drive the AF. It’s fairly lightweight at 16.8oz/480g. Chances are you will need to use a tripod when using the lens at 300mm. I did use a tripod for those two photos.
The two photos above were taken with the EF 70-300mm f/4-5.6 IS USM lens, this lens can generally be found for under $800. It offers an ultrasonic motor helping to make auto focusing almost noiseless and fast, precise and practical. It has two stabilization modes, and you are able to turn the Image Stabilization off when you are using a tripod. The lens can be locked at 70mm, making transport easier; it weighs in at 22.2 oz/630g . But my favorite thing about this lens is that I don’t need a tripod at 300mm.
All photos were taken with the respective lens on a Canon Rebel XTi, EOS Digital SLR Camera.
Please note: The above links are for your convenience in comparing the two lenses, I get no credit for you clicking them. Canon offers many different lenses and I am trying to assure that you know precisely which two lenses are covered in this review.