Jul 01, 2015 02:47 | #1  Permanent banI was just checking the firmware status on my 6D when I noticed the attached 24-105 STM lens (fantastic lens, BTW) also has firmware installed. No firmware listed on the lens' website. Does anyone know anything about this? Is it upgradeable? Is it just for future applications? I can't find anything on lens firmware. WARNING: I often dispense advice in fields I know little about!
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Jul 01, 2015 02:58 | #2 I think it´s a new feature. I can´t find firmware for any lens... but I suppose they will be listed as they become available. Canon 5d, 60d, 17-40mm L, 30mm Art, 50mm, 85mm
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msowsun "approx 8mm"  More info Post edited over 8 years ago by msowsun. (5 edits in all) | Jul 02, 2015 09:41 | #3 I believe Canon started adding the ability to upgrade the firmware on it's lenses starting sometime in 2012. Cameras produced after that date have two categories for firmware updates: Camera or lens. The 1D X, 5D Mark III, and 650D/T4i were the first cameras to have this option.  Image hosted by forum (735232) © msowsun [SHARE LINK] Here is a link to Canon's firmware update page: http://www.usa.canon.com …upport-_-Firmware+UpdatesTHIS IS A LOW QUALITY PREVIEW. Please log in to see the good quality stuff.  The EF 40mm 2.8 STM had a firmware update to deal with a problem where it would go dead if you pushed in the front element. Firmware Version 1.2.0 addresses the following phenomenon. 1. If pressure is applied to the lens barrel while the lens is mounted to the camera (pressure can be applied even while attaching the lens cap while carrying the camera with the lens attached in a bag), the autofocusing function of the lens may stop working. Firmware Version 1.2.0 is for lenses with Firmware Version 1.1.0. If the lens’ firmware is already Version 1.2.0, it is not necessary to update the firmware. The lenses with the following serial numbers are equipped with Firmware Version 1.1.0: The third digit in the serial number is either 0, 1, or 2 (xx0xxxxxxx, xx1xxxxxxx, or xx2xxxxxxx). Lenses with serial numbers other than those listed above are equipped with Firmware Version 1.2.0. ● If an extension tube, or cables, such as USB cables, are attached to the camera, the firmware may not be successfully updated, so make sure that you detach the extension tube, and/or cables before updating the firmware. ● A supported camera* is required for the firmware update. Mike Sowsun / SL1 / 80D / EF-S 24mm STM / EF-S 10-18mm STM / EF-S 18-55mm STM / EF-S 15-85mm USM / EF-S 55-250mm STM / 5D3 / Samyang 14mm 2.8 / EF 40mm 2.8 STM / EF 50mm 1.4 USM / EF 100mm 2.0 USM / EF 100mm 2.8 USM Macro / EF 24-105mm IS / EF 70-200mm 2.8L IS Mk II / EF 100-400 II / EF 1.4x II
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