I will have to search for what the overall consensus is relating to using rechargeable batteries for amplifiers. I might both do the rechargeable C batteries or the rechargeable AA batteries into the C adapter. America, people are not used to something however plugging into the wall and know nothing on the matter. You are appropriate concerning the calculation for the four hour estimate, and I think the “12AH/20HR” implies that the 12 Ah capability is predicated on a 20-hour discharge (i.e. discharged at 12/20 A, or 600 mA). In basic, you’ll get lower than the 12 Ah out of the battery when you discharge it sooner, but you’ll most likely nonetheless get close to the four hours.
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A better comparability is with all cameras set to ISO 800 +3EV, as a end result of recent Sonys use a dual native ISO that crosses over at ISO 640 . As a result, the S1 looks nearly unchanged at ISO 100 +6EV and ISO 800 +3EV, whereas the Sonys look MUCH better at the latter. Note that the a7III and a7RIII do visibly better than the a7IV. Not positive what’s wrong but when i evaluate this latest sony a7 iv (gold rated @dp) with my three years old lumix s1 (silver rated @dp at that time), atleast on DR iso invariance, I can see two stop of benefit to s1. Did something go incorrect with the check chart for video on the a7 IV? It appears extraordinarily gentle, and that is not what I would count on from this digital camera.