It’s not a great manual audio function as it’s within the video menu and there are no levels on screen whilst recording, no ability to change audio levels whilst recording and no headphone jack of course but it’s better than the horrible auto gain control. The big thing being manual audio control that has been conspicuously absent when the 5Dmk2, 600D, 650d and 60D all have it. Much of it improves enormously on the stills function but the video function gets a look in. Because of this difference, the hacked 20D would have a less desirable sensitivity to hydrogen emissions, but that's not something significant to most non-scientific users.It has been a long time coming and with no reason as to why we haven’t seen it sooner but the 7D now has a massive firmware upgrade. Second, the 20Da apparently has a different IR cut filter in the sensor stack. It is unclear if this is the same system used in the 20D. Now, there are some hardware differences between the 20D and the 20Da that may not be possible to overcome.įirst, the press release for the 20Da states that it has an 'optimised CMOS control system' used for long exposure noise reduction.

possibleġ5) Process data from sensor in the normal fashion. possibleġ2) Sensor is exposed in the normal fashion. It's just programming folks, although see note on 'optimised CMOS control system' below.Ĩ) User presses and holds release to end preview and begin exposure. 20D can do at least 5 FPS.ħ) Display a magnified section of the image on LCD and video out.

possibleĦ) Begin reading sensor at least n times per second. possibleģ) Check light levels to be sure they are not above a certain EV (as the 20Da does). possible via menu additionĢ) User presses and releases shutter release (or remote) to begin preview mode. Here are the steps required, particularly from a mechanical standpoint:ġ) User has enabled live preview mode via hack.

Canon 7d firmware hack