12-26-2015, 11:57 AM
The Sigma looked good to me.....just a question of checking for de-centering after purchase and returning for another if it's not good.
The construction levels are way above some of the old EX series lenses..........
I've stripped down an old 28-70 EX F2.8 and to be quite honest the construction was not far away from just plain cheapskate.....many self tapping screws into plastic........and not much in the way of metal..... the old AF screw-drive pinion drives direct on to the inside of the lens barrel where the teeth were just part of the barrel moulding.......with no manual AF provision, inadvertently holding the barrel in AF mode easily strips the gears and is too easily done....which is what had partially happened. Add to that a super thin rubberized outer coating which was falling off and all in all there's nothing to justify their EX category.
Their new upgrades in optical performance has been followed through in the mechanic revision of their lenses.....very nice too!
Lens Rentals really are giving us a thorough insight into the build as well as the optic consistency of lenses, which is really great, without that it would have been (and I must admit I am guilty of it myself) all to easy to think that the Canon 35mm F1.4 was way overpriced, but in fact it shows by how much their construction goes beyond the call of duty!
The construction levels are way above some of the old EX series lenses..........
I've stripped down an old 28-70 EX F2.8 and to be quite honest the construction was not far away from just plain cheapskate.....many self tapping screws into plastic........and not much in the way of metal..... the old AF screw-drive pinion drives direct on to the inside of the lens barrel where the teeth were just part of the barrel moulding.......with no manual AF provision, inadvertently holding the barrel in AF mode easily strips the gears and is too easily done....which is what had partially happened. Add to that a super thin rubberized outer coating which was falling off and all in all there's nothing to justify their EX category.
Their new upgrades in optical performance has been followed through in the mechanic revision of their lenses.....very nice too!
Lens Rentals really are giving us a thorough insight into the build as well as the optic consistency of lenses, which is really great, without that it would have been (and I must admit I am guilty of it myself) all to easy to think that the Canon 35mm F1.4 was way overpriced, but in fact it shows by how much their construction goes beyond the call of duty!