More HD Lens Tests

Steve Phillipps · October 12th, 2008, 04:12 PM

Thats' the thing though, Brian, the sort of zooms that do have a good rep are going to be seriously expensive even by HD lens standards. The first HD lens I ever used was a Canon CineStyle, and I must admit it was excellent, but even with that I'm sure I remember that it wanted to be stopped down about a stop for optimal performance.
What do you think to the wide open tests I've just done?
Steve

Brian Drysdale · October 12th, 2008, 04:52 PM

Assuming the same f stop, my first thought is that the 5jpeg doesn't seem to have the transmission losses of the ha jpeg lens. The 5jpeg seems to sharper at the edges and perhaps a slight edge in the centre.

Yes, stopping down the Canon a stop does really improve the performance.

October 12th, 2008, 04:12 PM	#31
Steve Phillipps Inner Circle Join Date: Apr 2006 Location: Wales Posts: 2,130	Thats' the thing though, Brian, the sort of zooms that do have a good rep are going to be seriously expensive even by HD lens standards. The first HD lens I ever used was a Canon CineStyle, and I must admit it was excellent, but even with that I'm sure I remember that it wanted to be stopped down about a stop for optimal performance. What do you think to the wide open tests I've just done? Steve

October 12th, 2008, 04:52 PM	#32
Brian Drysdale Inner Circle Join Date: Feb 2006 Location: Belfast, UK Posts: 6,152	Assuming the same f stop, my first thought is that the 5jpeg doesn't seem to have the transmission losses of the ha jpeg lens. The 5jpeg seems to sharper at the edges and perhaps a slight edge in the centre. Yes, stopping down the Canon a stop does really improve the performance.