1. This lens CAN be screwed with a filter along with a hood. Any (almost any) filter with a 43mm thread (not 49!) is screwed into the BLEND! 2. With a polarizer, such a trick will not work. 3. The lens, like the da15, is not for infinity - not landscape. Yes, you can make F16 and get something suitable, but this glass draws a foreground much more interesting than the 21st distance, sometimes it is very useful. For other cases, there is FA* 24.
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