As a enthusiastic amateur photographer I wanted something else than my normal compact camera. I wanted some dimension. I’ve always had an eye on SLR cameras, particularly the Canon Rebel XT (EOS).
After experimenting with that camera and knowing its features I noticed one thing that missing with the provided kit lens: the ability to zoom! The kit lens is 18-55mm which is a fine lens but in certain situations I missed the powerful zoom of my compact camera. For example at car shows or races when the stock kit won’t get close enough on the subject.
So after a visiting a few photography shops in town I got me some expert advise from the local photographer he mentioned a new lens from Tamron. The Tamron AF18-200MM F/3.5-6.3 Aspherical XR DiII LD IF.
Now that’s a mouth-full of words, but what does it mean? According to the Tamron website, XR means Extra Refractive Index Glass, DiII means Lenses for Digital SLR Cameras Only, LD stands for Low Dispersion and last but not least IF stands for Internal Focusing.
So to basically sum up the DiII bla bla bla I quote:
“Di II: Lenses are designed for exclusive use on digital cameras with smaller-size imagers and inherit all of the benefits of our Di products. These lenses are not designed for 35mm film cameras and digital cameras with image sensors larger than 24mm x 16mm.
At Tamron, our quest has always been to make the ideal zoom lens. As a result of this ongoing challenge, we have introduced the concept of our high-power zoom lens in the new AF18-200mm XR Di II for exclusive use with digital SLRs. Tamron’s original development of proprietary core technologies such as Aspherical element production, Multiple Cam Mechanism and Integrated Focus Cam design lend to the creation of the world’s lightest, most compact 11.1X zoom lens made for digital SLR cameras.”
So as we can see from the quote in the 200mm section it gives us a powerful 11.1X zoom now there’s something we all understand. But can you imagine that in pictures? No? well no problem here at OCMS we did it for you, I made a few photo’s to give you an idea what that magnification is.
|photo taken at 18mm||photo taken at 200mm|
If you still don’t understand you might want to check out the PDF sheet Tamron made for the lens here I recommend it it’s a great guide to understanding the basics of zooming.