Showing posts with label donkey. Show all posts
Showing posts with label donkey. Show all posts

Saturday, November 13, 2010


This is a follow up to a previous post on the same subject.  I love Canon Products.  I am a part of Canon Professional Services (CPS).  They don't favor their APS-C shooters.  I think much of the lens line is redundant and the third party manufacturers like SIGMA are taking a similar stance.  We need innovation beyond the 18-200mm do-it-all & nothing f/5.6 travel lens.

Here is the case.  I shoot a variety of subjects.  Some on land, some underwater.  Some WIDE and some needing TELEPHOTO and MACRO.  On land, I find it easy to carry two cameras to cover a wide range of subjects but the current Canon lineup of lenses isn't wide enough to fill the bill.  I was weaned with a Vivitar 20mm lens in my hand on my old screw-mount Pentax Spotmatic.  That is about a 90 degree field of view.

90 degree wide allows an extra measure of perspectivie and creativity without fisheye distortion.  For APS-C, taking into account the 1.5 magnification factor, that means lenses in the 12- 13 mm range.  1.5 x 13 = 19.5mm which is about 20mm.  EVERY MILIMETER COUNTS. However, for APS-C, Canon only has the 10-22 EF-S.  ALL THE REST start are woefully inadequate like the closest Canon 15-85 3.5-5.6 IS USM.  15mm =  22.5 in APS-C terms.  But it isn't enough.

I want L (Flourite) glass that Canon produces for full frame sensors.  I want a 2.8 Lens, not 5.6. The popular 24-70 mm 2.8 L USM is the laughable equivalent of a 36mm in APS-C terms. The widest L Zoom is 16 - 35.  16mm full frame = 24mm for an APS-C or about 70 degrees at the widest.  Not good enough.  Subjects occur between 35mm and 70mm.  THREE milimeters of Focal length cuts off 20 degrees of capability / creativity for APS-C users.  Nobody has noticed.  If you have, you need get vocal to Canon.

A lens from 13mm - 70mm EF-S 2.8 L would be the perfect solution to accompany a 70 - 200 EF 2.8 L.  Subjects occur between 35mm and 70mm.  Encourage the rumor.  I invite your comments.  Part 3 will talk about the huge gap in Canon telephoto lenses.

Shot with my really sharp Tokina 10-18 Fisheye.  Stock photo available for sale at ALAMY.