jerryh
TPF Noob!
I'm in the process of buying a new lens for my 20D and would like to get some feed back on the 100-400 4.5-5.6L IS and 300mm 4.0L IS.
Will the push pull zoom on the 100-400 cause excessive dust build up on digital sensor to the point of being a real problem ?
Because of this would the 300MM be a better idea even though the zoom range is not as great. I like to shoot sports photography as a hobby so the longer the zoom range the better but I don't want to spend all my time cleaning a sensor or sending the camera to repair shop to be cleaned.
Any advice on this would be greatly appreciated
Will the push pull zoom on the 100-400 cause excessive dust build up on digital sensor to the point of being a real problem ?
Because of this would the 300MM be a better idea even though the zoom range is not as great. I like to shoot sports photography as a hobby so the longer the zoom range the better but I don't want to spend all my time cleaning a sensor or sending the camera to repair shop to be cleaned.
Any advice on this would be greatly appreciated