skotak's reviews

Canon EF 100-400mm f/4.5-5.6L IS USM

This lens is anything from being sharp at 400mm and auto focus is not very precise. I bought this lens for a trip to Costa Rica and many photos turned out unusable, and few are OK. To get this lens somewhat OK at 400mm range, you need to shoot at F8 or F11, because F5.6 is just too soft. I have done test with my Canon 70-400 F/4 L lens compared to 100-400mm lens, both shot at far end of zoom, and 70-200f/4 resulted in better sharpness at F4 at the same crop size! I don't need couple stops of stabilization, auto focus works properly, bokeh looks the same, I have flexibility with crop and I saved myself $1200 and my shoulders for carrying heavier lens. Sold my 100-400mm lens on eBay few days ago. I use 5D Mark II, but I believe crop sensor will have similar results. Hope this was helpful. I only wish I would do the same test before I left to Costa Rica. Darn it. ....and just to mention, I did compared this lens to my friends, just to make sure it wasn't a lemon from eBay.