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In effect, competent photographers actually have a longer lens when they are using the 600II than when they are using the 800. With the above in mind, let’s take a look at the maximum effective focal length of the two lens with a professional digital camera body.Ĩ00mm f/5.6 with the 1.4XIII TC (at f/8): 1120mm.Ħ00mm f/4L IS II with the 2XIII TC (at f/8): 1200mm.īy a small margin, the edge when considering reach goes to the 600II. and-at times-with shutter speeds even slower than that.” And that was before Series III TCs and before 4-stop Image Stabilization. Melissa Groo commented, “600mm plus full frame? Can’t wait to hear your explanation.”įirst we need to consider that on page 6 of “The Art f Bird Photography II” (ABP II: 916 pages on CD only) I wrote, “… it is routine for me to use either the 500 or 600mm IS lenses with the 2X II teleconverter and produce razor-sharp images consistently at shutter speeds of 1/60 sec. Many were astounded that I would be going from the 800 down to the 600. I announced in the blog post here that I would soon be selling my beloved 800mm f/5.6L IS lens. Note the image quality of this 1D X image at ISO 1600.Ĭanon EF 600mm f/4L IS II vs Canon EF 800mm f/5.6L IS Image courtesy of and copyright 2013: Patrick Sparkman. Click on the image to see a larger, sharper version. Click here if you missed the Rear Focus Tutorial. at f/8.Ĭentral sensor (by necessity) Expand/AI Servo/Rear Focus AF active at the moment of exposure. Evaluative metering +1/3 stop: 1/4000 sec. This Brandt’s Cormorant flight shot was created by Patrick Sparkman with the hand held Canon EF 600mm f/4L IS II USM lens, the Canon 2x EF Extender III (Teleconverter), and the Canon EOS-1D X Digital SLR Camera (Body Only) w/FREE Bonus Item – $446.45 Value! !.
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