Quote:
Originally Posted by leon
Hi guys,
I have always bought full frame cameras which have a ratio of 1-1
A friend of mine bought a new Canon 200Dmark 11 with an APSC Comos Sensor recently with a 18-55mm kit lens.
Please tell me dose the 1.6 rule still apply to these sensors or have they fixed this so that what you have on the barrel of the lens is actually the correct reading.
Otherwise 18mm becomes 28.8mm and 55 becomes 88mm
Thank you.
Leon
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Hi Leon, I recently went through this with my Canon 80D and confirmed that it is still necessary to multiply the zoom setting (focal length) by 1.6 for both the EF and EF-S series lenses. So indeed it is correct that your 18-55 lens is in fact a 28.8 - 88mm lens when on the APSC body.
For clarification, the EF-S series lenses for Canon are made for the APSC (crop sensor) body and will not fit on a full frame body. The EF series lenses are made for the full frame sensor body but can be fitted to the APSC sensor body. In both cases though the zoom factor is multiplied by 1.6.
I recently bought a used Canon 70-300mm EF mount zoom lens to use on my 80D body. Taking the crop factor into account it is the equivalent of a 112-480mm zoom. I also have a 18-200mm EF-S mount kit lens that came with my old 550D which is effectively a 28.8- 320mm zoom.
CS,
Rodney