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dgaies · 03-04-2012, 08:22 PM

Originally posted by bossa

Impressive quality Dan and not all that expensive either when you consider the alternatives.

Originally posted by Chex

Yeah the Nikon 24-70.. for about $1800... that 28-75 looks pretty damn fine.

Originally posted by thibs

Mmm thought the Tammy was very good on APS but very mediocre on Full frame?
I know this is photozone take on it but I mostly read comments in the same way...

Yeah, certainly the main alternative is quite expensive. I own the Nikon 24-70, although it was a somewhat recent acquisition and I haven't really has a chance to directly compare it to the Tamron (which I am borrowing from a friend). I have no doubt the 24-70 will prove to be the superior lens, but at a cost of 4-5x, I would certainly expect that to be the case. In terms of value, it's a much tougher call and would come down to what type of shooting you were doing and if you were getting paid to do it

As for the Tammy not being good on FF, again I think it depends what your expectations are. I'm sure the edges and corners aren't as good on FF as they are on crop, but at the same time for a lot of what I shoot (my kids) I'm not terribly concerned with corner/edge performance. Kind of like the 18-135WR that photozone gave low marks to, I personally like that lens a lot despite it's weakness away from the center of the frame at longer focal lengths.

bossa · 03-04-2012, 09:30 PM

Do Nikon bodies correct other makers lenses on-board? I know that Pentax only allows the advanced metering and lens corrections with their own lenses. I played around with a Nikon 24-70 on a D700 bdy in a shop a week ago and thught teh lens was pretty big and I could see barrel distortion in the VF. Also, CA results on tests of that lens aren't all that great ASFAIAC. The Sony/Zeiss version gets better test results where I've seen it tested.

Chex · 03-04-2012, 10:50 PM

Well this thread has been officially jacked into another FF (Nikon) discussion thread!
At any rate... from what I've been reading the 24-70 is supposedly best in class & FL range. But it still is far from "perfect".
I was surprised to read up on the 105mm f2.8 Micro-Nikkor VR.. Great high end glass for a fairly good price oveall..
Well I JUST about bought a D3 off ebay today, I missed it by seconds! Ahh well lots will come up now with the D4 and D800/E hitting shelves soon.

thibs · 03-05-2012, 01:56 AM

Originally posted by dgaies

As for the Tammy not being good on FF, again I think it depends what your expectations are. I'm sure the edges and corners aren't as good on FF as they are on crop, but at the same time for a lot of what I shoot (my kids) I'm not terribly concerned with corner/edge performance. Kind of like the 18-135WR that photozone gave low marks to, I personally like that lens a lot despite it's weakness away from the center of the frame at longer focal lengths.

Thank you !

thibs · 03-05-2012, 01:56 AM

Originally posted by bossa

Do Nikon bodies correct other makers lenses on-board? I know that Pentax only allows the advanced metering and lens corrections with their own lenses. I played around with a Nikon 24-70 on a D700 bdy in a shop a week ago and thught teh lens was pretty big and I could see barrel distortion in the VF. Also, CA results on tests of that lens aren't all that great ASFAIAC. The Sony/Zeiss version gets better test results where I've seen it tested.

Metering? AFAIK All lenses won't do anything to metering but if they're non 'A type' or if

thibs · 03-05-2012, 01:57 AM

Originally posted by bossa

Do Nikon bodies correct other makers lenses on-board? I know that Pentax only allows the advanced metering and lens corrections with their own lenses. I played around with a Nikon 24-70 on a D700 bdy in a shop a week ago and thught teh lens was pretty big and I could see barrel distortion in the VF. Also, CA results on tests of that lens aren't all that great ASFAIAC. The Sony/Zeiss version gets better test results where I've seen it tested.

Metering? AFAIK All lenses won't do anything to metering but if they're non 'A type' or if aperture ring isn't on 'A' setting.
Auto geometry correction is sometihng else but pretty obvious, correction data is embedded in lenses chip (all DA lenses AFAICT).

RXrenesis8 · 03-05-2012, 08:35 AM

Originally posted by thibs

correction data is embedded in lenses chip (all DA lenses AFAICT).

I'd put this data in the firmware of the cameras if I were the MFR, but I have no data to back this up...

thibs · 03-05-2012, 08:42 AM

Originally posted by RXrenesis8

I'd put this data in the firmware of the cameras if I were the MFR, but I have no data to back this up...

Has been said by Pentax rep but really can't remember, it was at the time of the K7 introduction (and introduction of the feature).
Previous (like FA Limited, DFAs) are probably in camera firmware indeed.

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03-04-2012, 08:22 PM	#361
dgaies Veteran Member Join Date: Oct 2009 Location: Maryland / Washington DC Posts: 3,917	Originally posted by bossa Impressive quality Dan and not all that expensive either when you consider the alternatives. Originally posted by Chex Yeah the Nikon 24-70.. for about $1800... that 28-75 looks pretty damn fine. Originally posted by thibs Mmm thought the Tammy was very good on APS but very mediocre on Full frame? I know this is photozone take on it but I mostly read comments in the same way... Yeah, certainly the main alternative is quite expensive. I own the Nikon 24-70, although it was a somewhat recent acquisition and I haven't really has a chance to directly compare it to the Tamron (which I am borrowing from a friend). I have no doubt the 24-70 will prove to be the superior lens, but at a cost of 4-5x, I would certainly expect that to be the case. In terms of value, it's a much tougher call and would come down to what type of shooting you were doing and if you were getting paid to do it As for the Tammy not being good on FF, again I think it depends what your expectations are. I'm sure the edges and corners aren't as good on FF as they are on crop, but at the same time for a lot of what I shoot (my kids) I'm not terribly concerned with corner/edge performance. Kind of like the 18-135WR that photozone gave low marks to, I personally like that lens a lot despite it's weakness away from the center of the frame at longer focal lengths.

03-04-2012, 09:30 PM	#362
bossa Veteran Member Join Date: Jul 2011 Location: Adelaide Posts: 4,539	Do Nikon bodies correct other makers lenses on-board? I know that Pentax only allows the advanced metering and lens corrections with their own lenses. I played around with a Nikon 24-70 on a D700 bdy in a shop a week ago and thught teh lens was pretty big and I could see barrel distortion in the VF. Also, CA results on tests of that lens aren't all that great ASFAIAC. The Sony/Zeiss version gets better test results where I've seen it tested.

03-04-2012, 10:50 PM	#363
Chex Veteran Member Join Date: Feb 2011 Location: The 'Stoke, British Columbia Photos: Gallery Posts: 1,700	Well this thread has been officially jacked into another FF (Nikon) discussion thread! At any rate... from what I've been reading the 24-70 is supposedly best in class & FL range. But it still is far from "perfect". I was surprised to read up on the 105mm f2.8 Micro-Nikkor VR.. Great high end glass for a fairly good price oveall.. Well I JUST about bought a D3 off ebay today, I missed it by seconds! Ahh well lots will come up now with the D4 and D800/E hitting shelves soon.

03-05-2012, 01:56 AM	#364
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 5,236	Originally posted by dgaies As for the Tammy not being good on FF, again I think it depends what your expectations are. I'm sure the edges and corners aren't as good on FF as they are on crop, but at the same time for a lot of what I shoot (my kids) I'm not terribly concerned with corner/edge performance. Kind of like the 18-135WR that photozone gave low marks to, I personally like that lens a lot despite it's weakness away from the center of the frame at longer focal lengths. Thank you !

03-05-2012, 01:56 AM	#365
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 5,236	Originally posted by bossa Do Nikon bodies correct other makers lenses on-board? I know that Pentax only allows the advanced metering and lens corrections with their own lenses. I played around with a Nikon 24-70 on a D700 bdy in a shop a week ago and thught teh lens was pretty big and I could see barrel distortion in the VF. Also, CA results on tests of that lens aren't all that great ASFAIAC. The Sony/Zeiss version gets better test results where I've seen it tested. Metering? AFAIK All lenses won't do anything to metering but if they're non 'A type' or if

03-05-2012, 01:57 AM	#366
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 5,236	Originally posted by bossa Do Nikon bodies correct other makers lenses on-board? I know that Pentax only allows the advanced metering and lens corrections with their own lenses. I played around with a Nikon 24-70 on a D700 bdy in a shop a week ago and thught teh lens was pretty big and I could see barrel distortion in the VF. Also, CA results on tests of that lens aren't all that great ASFAIAC. The Sony/Zeiss version gets better test results where I've seen it tested. Metering? AFAIK All lenses won't do anything to metering but if they're non 'A type' or if aperture ring isn't on 'A' setting. Auto geometry correction is sometihng else but pretty obvious, correction data is embedded in lenses chip (all DA lenses AFAICT).

03-05-2012, 08:35 AM	#367
RXrenesis8 Veteran Member Join Date: Jan 2011 Location: Orlando, FL (USA) Photos: Gallery \| Albums Posts: 523	Originally posted by thibs correction data is embedded in lenses chip (all DA lenses AFAICT). I'd put this data in the firmware of the cameras if I were the MFR, but I have no data to back this up...

03-05-2012, 08:42 AM	#368
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 5,236	Originally posted by RXrenesis8 I'd put this data in the firmware of the cameras if I were the MFR, but I have no data to back this up... Has been said by Pentax rep but really can't remember, it was at the time of the K7 introduction (and introduction of the feature). Previous (like FA Limited, DFAs) are probably in camera firmware indeed.