Sigma 70-200mm F2.8 EX DG OS HSM Lens - Pentax Fit
Posted 21/10/2012 - 23:41
Link
One more question before I decide whether or not to buy this lens.
I need to know whether any AF offset that might be needed will be correctly applied to this lens.
The K5 (and other bodies) can store AF adjustments for up to 20 lenses. Given that I have determined that Sigma lenses are not identified by name in Lightroom, if I were to have more than one Sigma lens, will AF adjustments that I set for one Sigma lens be applied to all Sigma lenses rather than each lens have individual adjustments stored on the K5.
I ask because I already have a Sigma 180mm Macro lens.
If any of you have more than one Sigma lens, could I ask you to check and let me know please.
I need to know whether any AF offset that might be needed will be correctly applied to this lens.
The K5 (and other bodies) can store AF adjustments for up to 20 lenses. Given that I have determined that Sigma lenses are not identified by name in Lightroom, if I were to have more than one Sigma lens, will AF adjustments that I set for one Sigma lens be applied to all Sigma lenses rather than each lens have individual adjustments stored on the K5.
I ask because I already have a Sigma 180mm Macro lens.
If any of you have more than one Sigma lens, could I ask you to check and let me know please.
Peter E Smith - flickr Photostream
Posted 28/11/2012 - 12:56
Link
FWIW, there's a very useful list of the ID tags embedded in the various lenses here.
Where there is an overlap of lenses, you'll see a dotted number, e.g. '4 45', '4 45.1' and '4 45.2' show that the actual ID of '4 45' could be any one of these lenses: "Tamron Lens (4 45)", "Tamron 28-300mm F3.5-6.3 Ultra zoom XR", or "Tamron AF 28-300mm F3.5-6.3 XR Di LD Aspherical [IF] Macro" and you won't be able to tell which is which.
The ID '3 255' refers to ten different Sigma lenses!
The camera will use the Lens ID marker for the AF adjustment, and you'll only have a problem if you own two lenses with the same ID
e.g. this little group:
Matt
Where there is an overlap of lenses, you'll see a dotted number, e.g. '4 45', '4 45.1' and '4 45.2' show that the actual ID of '4 45' could be any one of these lenses: "Tamron Lens (4 45)", "Tamron 28-300mm F3.5-6.3 Ultra zoom XR", or "Tamron AF 28-300mm F3.5-6.3 XR Di LD Aspherical [IF] Macro" and you won't be able to tell which is which.
The ID '3 255' refers to ten different Sigma lenses!
The camera will use the Lens ID marker for the AF adjustment, and you'll only have a problem if you own two lenses with the same ID
e.g. this little group:
Quote:
'8 255' = Sigma Lens (8 255)
'8 255.1' = Sigma 70-200mm F2.8 EX DG Macro HSM II
'8 255.2' = Sigma APO 150-500mm F5-6.3 DG OS HSM
'8 255.3' = Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye
'8 255.4' = Sigma 50-200mm F4-5.6 DC OS
'8 255' = Sigma Lens (8 255)
'8 255.1' = Sigma 70-200mm F2.8 EX DG Macro HSM II
'8 255.2' = Sigma APO 150-500mm F5-6.3 DG OS HSM
'8 255.3' = Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye
'8 255.4' = Sigma 50-200mm F4-5.6 DC OS
Matt
http://www.mattmatic.co.uk
(For gallery, tips and links)
(For gallery, tips and links)
Posted 28/11/2012 - 17:43
Link
Mike-P wrote:
So how you getting on with the Sigma Peter?
So how you getting on with the Sigma Peter?
I've used it at one race meeting so far with mixed results, but I put that down to me, not the lens.
I'm thinking I might need the low light focus abilities of the K5 II or K5 IIs.
I haven't been able to use it much in proper daylight yet but I'll let you know when I have had a decent play with it.
I'll put a few of the images I' have taken with it onto Flickr tonight with a link later.
Peter E Smith - flickr Photostream
Posted 28/11/2012 - 17:46
Link
MattMatic wrote:
FWIW, there's a very useful list of the ID tags embedded in the various lenses here.
Where there is an overlap of lenses, you'll see a dotted number, e.g. '4 45', '4 45.1' and '4 45.2' show that the actual ID of '4 45' could be any one of these lenses: "Tamron Lens (4 45)", "Tamron 28-300mm F3.5-6.3 Ultra zoom XR", or "Tamron AF 28-300mm F3.5-6.3 XR Di LD Aspherical [IF] Macro" and you won't be able to tell which is which.
The ID '3 255' refers to ten different Sigma lenses!
The camera will use the Lens ID marker for the AF adjustment, and you'll only have a problem if you own two lenses with the same ID
e.g. this little group:
Matt
FWIW, there's a very useful list of the ID tags embedded in the various lenses here.
Where there is an overlap of lenses, you'll see a dotted number, e.g. '4 45', '4 45.1' and '4 45.2' show that the actual ID of '4 45' could be any one of these lenses: "Tamron Lens (4 45)", "Tamron 28-300mm F3.5-6.3 Ultra zoom XR", or "Tamron AF 28-300mm F3.5-6.3 XR Di LD Aspherical [IF] Macro" and you won't be able to tell which is which.
The ID '3 255' refers to ten different Sigma lenses!
The camera will use the Lens ID marker for the AF adjustment, and you'll only have a problem if you own two lenses with the same ID
e.g. this little group:
Quote:
'8 255' = Sigma Lens (8 255)
'8 255.1' = Sigma 70-200mm F2.8 EX DG Macro HSM II
'8 255.2' = Sigma APO 150-500mm F5-6.3 DG OS HSM
'8 255.3' = Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye
'8 255.4' = Sigma 50-200mm F4-5.6 DC OS
'8 255' = Sigma Lens (8 255)
'8 255.1' = Sigma 70-200mm F2.8 EX DG Macro HSM II
'8 255.2' = Sigma APO 150-500mm F5-6.3 DG OS HSM
'8 255.3' = Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye
'8 255.4' = Sigma 50-200mm F4-5.6 DC OS
Matt
Thanks Matt. I'm wondering if there is a way to update Lightroom's lens ID database with our own lens descriptions. Anybody know if this is possible?
Peter E Smith - flickr Photostream
Posted 28/11/2012 - 18:14
Link
Here's some taken at f2.8, 1/180th, ISO800 processed in Lightroom.
ND Grad added, darkest at bottom, to 'dumb' down the flash. A bit of sharpening and noise removal, cropped. That's about it.
I'm about 20-30 feet away from the cars and standing behind a tyre wall and steel barrier, and trying to carry out my marshal duties as well.
This first image has had a bit more work done on it to bring out the sky because it was almost dark when I took this. The racing team wants a copy of it too so I thought I'd better put some effort into it

K21_3494.jpg by Peter E Smith (AKA Mannesty), on Flickr

K51_8090.jpg by Peter E Smith (AKA Mannesty), on Flickr

K51_8093.jpg by Peter E Smith (AKA Mannesty), on Flickr

K51_8105.jpg by Peter E Smith (AKA Mannesty), on Flickr

K51_8106.jpg by Peter E Smith (AKA Mannesty), on Flickr
C&C welcome because I'm sure this lens is more proficient than I am. Only two race meetings left for this year though, we start again in Feb '13.
ND Grad added, darkest at bottom, to 'dumb' down the flash. A bit of sharpening and noise removal, cropped. That's about it.
I'm about 20-30 feet away from the cars and standing behind a tyre wall and steel barrier, and trying to carry out my marshal duties as well.
This first image has had a bit more work done on it to bring out the sky because it was almost dark when I took this. The racing team wants a copy of it too so I thought I'd better put some effort into it

K21_3494.jpg by Peter E Smith (AKA Mannesty), on Flickr

K51_8090.jpg by Peter E Smith (AKA Mannesty), on Flickr

K51_8093.jpg by Peter E Smith (AKA Mannesty), on Flickr

K51_8105.jpg by Peter E Smith (AKA Mannesty), on Flickr

K51_8106.jpg by Peter E Smith (AKA Mannesty), on Flickr
C&C welcome because I'm sure this lens is more proficient than I am. Only two race meetings left for this year though, we start again in Feb '13.
Peter E Smith - flickr Photostream
Add Comment
To leave a comment - Log in to Pentax User or create a new account.
7650 posts
20 years
Totana,
Spain.
Is your 60-250mm too slow Peter?
I'm not sure Mike. I didn't have it with me at the last race meeting but I'll take it to the next one on Sunday and give it a try out.
I have used it before when the light was better a month or so ago.
Problem is that racing doesn't start until 7PM (or when the ambulance gets there, elph 'n saphety, init) and this time of year I have about 1 hour of sun, and that's quite low in the sky.