Here is the quick summary: the firmware update for the Canon mount Sigma 18-35mm f/1.8 (2014-8-22) did more than add support for the EOS C100, as claimed by Sigma. It also changed the lens ID from 137 to 150, and seems to have improved auto-focus accuracy, although not precision. Update:The auto-focus is as good as a Canon EF 85mm f/1.8.
I got one of Sigma's 18-35mm f/1.8 lenses to go with a new Canon EOS 70D over a year ago. At a New Year's event with a local band that includes a neighbor of mine, I took a bunch of pictures with this combination. Flickery 1 9 32 – desktop flickr client. The result seemed to work pretty well in spite of the low light at the outdoor venue. However, I have found that many images I have taken with the lens since then have not been in focus when using the optical viewfinder. This is a fairly common problem with Sigma lenses, although it doesn't account for its early good performance. I'm guessing that at the New Year's event most of the pictures had a deeper depth of field from focusing far enough away.
- SIGMA MOUNT CONVERTER MC-11 EF-E v1.32 It has become compatible with the SIGMA 18-35mm F1.8 DC HSM Art for Canon EF mount, that has the latest firmware Ver.2.03. It has become compatible with the SIGMA 24-105mm F4 DG OS HSM Art for Canon EF mount, that has the latest firmware Ver.2.01.
- SIGMA 30mm F1.4 DC HSM Art – SIGMA and Canon mount SIGMA 18-35mm F1.8 DC HSM Art – SIGMA and Canon mount. Benefit of this firmware update It has enabled compatibility of the lenses with SIGMA MOUNT CONVERTER MC-11. For customers who own the following products, please check for firmware updates as new firmware was released for them on.
- 135mm 16-35mm 18-300mm 24-35mm 25mm 45mm 500mm 50mm 85mm 8mm e-m1 e-m1 mark ii e-m5 mark ii firmware firmware friday firmware update mc-11 olympus pen-f sigma by Mike Tomkins posted Friday.
- This Sigma 18-35mm f/1.8 is an optically superb lens, but it's also much bigger and heavier than similar fixed lenses like the superb Nikon 35mm f/1.8 DX.The 18-35mm zoom range only works out to be equivalent to about 28-55mm on full-frame; not exactly more useful than a fixed lens.
To deal with the problem, I got one of Sigma's dock gizmos. I printed out a focus test page and made a table that I filled out with the adjustments needed. Every time I used the dock, the Sigma software asked about updating the lens firmware. I always refused because Sigma claims they just added support for a camera I don't have. I don't like to update things unless the update is actually beneficial. It is a way of limiting the chances of dealing with an update that breaks something.
The attempt at improving auto-focus didn't go well. I got very contradictory results from two attempts, each starting from no adjustments, and neither improved the results. I figured the paper at a 45 degree angle was to blame, so I built a focus target out of Lego. When I cleared the adjustments on the lens before testing, I decided to update the lens firmware just to keep the software from incessantly asking about it. Every test I did with the Lego target suggested the lens was fine. Some tests with more common subjects suggest the accuracy is decent, but the precision still isn't as good as with Canon lenses, so it is still a good idea to take several pictures and review them.
The software I use for keeping track of my photos, Digikam, did not at first identify this lens. Instead it called it lens 137; it has since been updated. I think the Canon protocol uses an 8-bit unsigned integer to identify the lens model, although now additional information like the focal length range is needed to identify a specific lens model. Since I updated the firmware, Digikam identifies the new images as being taken with lens 150.
Buy them here: Sigma 18-35mm f1.8 Lens Sigma MC-11 Emount Converter Sigma USB Dock for Canon I will be taking a quick look.
I don't know if this change from 137 to 150 is needed to make the lens work with the EOS C100. It is possible that the change will affect how the lens and camera work together. From what I'm seeing, it has a favorable effect on auto-focus performance with my EOS 70D. I don't know why Sigma wouldn't mention this, and I really don't like the short list of changes common in the photographic industry for such updates. I have suspected that some changes are omitted from the public list of changes, and my experience with Sigma's 18-35mm f/1.8 lens deepens that suspicion.
Tags: auto-focus, firmware, photography, Sigma, Sigma 18-35mm f/1.8, updates
Here is the quick summary: the firmware update for the Canon mount Sigma 18-35mm f/1.8 (2014-8-22) did more than add support for the EOS C100, as claimed by Sigma. It also changed the lens ID from 137 to 150, and seems to have improved auto-focus accuracy, although not precision. Update:The auto-focus is as good as a Canon EF 85mm f/1.8.
I got one of Sigma's 18-35mm f/1.8 lenses to go with a new Canon EOS 70D over a year ago. At a New Year's event with a local band that includes a neighbor of mine, I took a bunch of pictures with this combination. Flickery 1 9 32 – desktop flickr client. The result seemed to work pretty well in spite of the low light at the outdoor venue. However, I have found that many images I have taken with the lens since then have not been in focus when using the optical viewfinder. This is a fairly common problem with Sigma lenses, although it doesn't account for its early good performance. I'm guessing that at the New Year's event most of the pictures had a deeper depth of field from focusing far enough away.
- SIGMA MOUNT CONVERTER MC-11 EF-E v1.32 It has become compatible with the SIGMA 18-35mm F1.8 DC HSM Art for Canon EF mount, that has the latest firmware Ver.2.03. It has become compatible with the SIGMA 24-105mm F4 DG OS HSM Art for Canon EF mount, that has the latest firmware Ver.2.01.
- SIGMA 30mm F1.4 DC HSM Art – SIGMA and Canon mount SIGMA 18-35mm F1.8 DC HSM Art – SIGMA and Canon mount. Benefit of this firmware update It has enabled compatibility of the lenses with SIGMA MOUNT CONVERTER MC-11. For customers who own the following products, please check for firmware updates as new firmware was released for them on.
- 135mm 16-35mm 18-300mm 24-35mm 25mm 45mm 500mm 50mm 85mm 8mm e-m1 e-m1 mark ii e-m5 mark ii firmware firmware friday firmware update mc-11 olympus pen-f sigma by Mike Tomkins posted Friday.
- This Sigma 18-35mm f/1.8 is an optically superb lens, but it's also much bigger and heavier than similar fixed lenses like the superb Nikon 35mm f/1.8 DX.The 18-35mm zoom range only works out to be equivalent to about 28-55mm on full-frame; not exactly more useful than a fixed lens.
To deal with the problem, I got one of Sigma's dock gizmos. I printed out a focus test page and made a table that I filled out with the adjustments needed. Every time I used the dock, the Sigma software asked about updating the lens firmware. I always refused because Sigma claims they just added support for a camera I don't have. I don't like to update things unless the update is actually beneficial. It is a way of limiting the chances of dealing with an update that breaks something.
The attempt at improving auto-focus didn't go well. I got very contradictory results from two attempts, each starting from no adjustments, and neither improved the results. I figured the paper at a 45 degree angle was to blame, so I built a focus target out of Lego. When I cleared the adjustments on the lens before testing, I decided to update the lens firmware just to keep the software from incessantly asking about it. Every test I did with the Lego target suggested the lens was fine. Some tests with more common subjects suggest the accuracy is decent, but the precision still isn't as good as with Canon lenses, so it is still a good idea to take several pictures and review them.
The software I use for keeping track of my photos, Digikam, did not at first identify this lens. Instead it called it lens 137; it has since been updated. I think the Canon protocol uses an 8-bit unsigned integer to identify the lens model, although now additional information like the focal length range is needed to identify a specific lens model. Since I updated the firmware, Digikam identifies the new images as being taken with lens 150.
Buy them here: Sigma 18-35mm f1.8 Lens Sigma MC-11 Emount Converter Sigma USB Dock for Canon I will be taking a quick look.
I don't know if this change from 137 to 150 is needed to make the lens work with the EOS C100. It is possible that the change will affect how the lens and camera work together. From what I'm seeing, it has a favorable effect on auto-focus performance with my EOS 70D. I don't know why Sigma wouldn't mention this, and I really don't like the short list of changes common in the photographic industry for such updates. I have suspected that some changes are omitted from the public list of changes, and my experience with Sigma's 18-35mm f/1.8 lens deepens that suspicion.
Tags: auto-focus, firmware, photography, Sigma, Sigma 18-35mm f/1.8, updates
Here is the quick summary: the firmware update for the Canon mount Sigma 18-35mm f/1.8 (2014-8-22) did more than add support for the EOS C100, as claimed by Sigma. It also changed the lens ID from 137 to 150, and seems to have improved auto-focus accuracy, although not precision. Update:The auto-focus is as good as a Canon EF 85mm f/1.8.
I got one of Sigma's 18-35mm f/1.8 lenses to go with a new Canon EOS 70D over a year ago. At a New Year's event with a local band that includes a neighbor of mine, I took a bunch of pictures with this combination. The result seemed to work pretty well in spite of the low light at the outdoor venue. However, I have found that many images I have taken with the lens since then have not been in focus when using the optical viewfinder. This is a fairly common problem with Sigma lenses, although it doesn't account for its early good performance. I'm guessing that at the New Year's event most of the pictures had a deeper depth of field from focusing far enough away.
To deal with the problem, I got one of Sigma's dock gizmos. I printed out a focus test page and made a table that I filled out with the adjustments needed. Every time I used the dock, the Sigma software asked about updating the lens firmware. I always refused because Sigma claims they just added support for a camera I don't have. I don't like to update things unless the update is actually beneficial. It is a way of limiting the chances of dealing with an update that breaks something.
The attempt at improving auto-focus didn't go well. I got very contradictory results from two attempts, each starting from no adjustments, and neither improved the results. I figured the paper at a 45 degree angle was to blame, so I built a focus target out of Lego. When I cleared the adjustments on the lens before testing, I decided to update the lens firmware just to keep the software from incessantly asking about it. Every test I did with the Lego target suggested the lens was fine. Some tests with more common subjects suggest the accuracy is decent, but the precision still isn't as good as with Canon lenses, so it is still a good idea to take several pictures and review them.
The software I use for keeping track of my photos, Digikam, did not at first identify this lens. Instead it called it lens 137; it has since been updated. I think the Canon protocol uses an 8-bit unsigned integer to identify the lens model, although now additional information like the focal length range is needed to identify a specific lens model. Since I updated the firmware, Digikam identifies the new images as being taken with lens 150.
Sigma 18 35mm E Mount
I don't know if this change from 137 to 150 is needed to make the lens work with the EOS C100. It is possible that the change will affect how the lens and camera work together. From what I'm seeing, it has a favorable effect on auto-focus performance with my EOS 70D. I don't know why Sigma wouldn't mention this, and I really don't like the short list of changes common in the photographic industry for such updates. I have suspected that some changes are omitted from the public list of changes, and my experience with Sigma's 18-35mm f/1.8 lens deepens that suspicion.
Sigma 18-35mm Art Firmware
Tags: auto-focus, firmware, photography, Sigma, Sigma 18-35mm f/1.8, updates
