Originally posted by ychousa OK, this is a little tough topic for me to understand :-) Could you elaborate a little more for easier understanding? Should I choose another lens such as 40mm limited instead of this 35mm?
It's not a knock on the lens. The DA35 has very good resolution. But sensors now have a lot more than the lenses do. Basically, you can't expect that any lens is going to provide "24MP" of detail. In other words, when you zoom to 100%, there's going to be some blur or other loss of fine detail. If you view it 50%, everything may look sharp, however, because that may be the limit of the lens's power to resolve.
You will also lose detail as you move farther away from the target. The atmosphere is not clear. There's dust, pollution, etc. in it. The more air between you and the subject, the more that is going to affect the photo because light is scattered by all those particles (including the air molecules) as it moves through the air--it's one reason why closer objects appear sharper to you and very distant objects will
always appear hazy.
Time of day also affects things; it is generally clearer in the morning than the afternoon. If you want to see this effect in extreme, go to a high place and take a photo in the late afternoon. It will look something like this:
The subject here was taken from 550 feet in the air (top of WaMo) from a half mile away. The effects of late afternoon Washington pollution are incredibly obvious.
In your example, it's not as extreme, but if you're looking for your lens to resolve individual leaves from 100 yards away...that's just too much to ask.