July 25, 2014, 02:45:59 AM

Author Topic: 60D Microfocus Adjustment on FoCal  (Read 4687 times)

dstppy

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Re: 60D Microfocus Adjustment on FoCal
« Reply #15 on: November 07, 2012, 01:26:53 PM »
All my flashlights are LED too :D  I have a problem

Mine, too - but they're battery powered, right?  Direct current means no fluctuations, no flicker.  It's not the bulb that's the problem, per se, it's the alternating current in combination with a bulb that has a fast response time (since incandescent bulbs are basically just heated tungsten, there's no flicker because the hot metal doesn't cool down significantly at 50/60 Hz cycles).  'Halogen' bulbs are incandescent bulbs with hot tungsten, but there's a bit of a halogen gas (bromine, etc.) added into the inert gas in the sealed bulb.

I know, I know...TMI...  :P

I've officially forgotten more than I can remember.  I've got LED lanterns I use for aux lighting for product shots  :-[ Oh god, I'm getting old.  This all should have occurred to me.
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Re: 60D Microfocus Adjustment on FoCal
« Reply #15 on: November 07, 2012, 01:26:53 PM »

bchernicoff

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Re: 60D Microfocus Adjustment on FoCal
« Reply #16 on: November 07, 2012, 01:42:20 PM »
Mine, too - but they're battery powered, right?  Direct current means no fluctuations, no flicker.

Actually, some (if not all) LED flashlights cycle the LED very quickly for their reduced power settings... I learned this while peeing by flashlight during a power outage. The strobing is too fast to perceive but it turned my urine stream into globules.
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neuroanatomist

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Re: 60D Microfocus Adjustment on FoCal
« Reply #17 on: November 07, 2012, 01:44:04 PM »
Ok, now that's TMI...   :o
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bchernicoff

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Re: 60D Microfocus Adjustment on FoCal
« Reply #18 on: November 07, 2012, 01:52:29 PM »
Ok, now that's TMI...   :o

Right! You probably clicked "post" then grabbed your flashlight and headed to the bathroom to try it.  ;)

Your gender and profession lead me to believe that curiosity will get the best of you...it's only a matter of time.
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Marsu42

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Re: 60D Microfocus Adjustment on FoCal
« Reply #19 on: November 07, 2012, 02:29:34 PM »
Reikan is looking into the possibility that the 60D's lacking of MFA is only in the UI software.

I wouldn't be surprised - the ui was/is in the 50d and 5d2, the only thing Canon most likely did is set a preprocessor macro flag before compiling the firmware: #define DUMB_SUCKERS_AFMA_UI_DISABLE 1

You can write arbitrary Canon settings with Magic Lantern - the problem just is that w/o documentation it's hard to figure out where the memory addresses are, and if you're getting it wrong the camera is bricked. But if the afma functionality is there, it should be possible to use it after much trial & error.

neuroanatomist

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Re: 60D Microfocus Adjustment on FoCal
« Reply #20 on: November 07, 2012, 02:34:12 PM »
50D had it.  Probably easier to flag it off than delete it, also makes it easier for them to re-offer it later or in the 70D.
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Mt Spokane Photography

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Re: 60D Microfocus Adjustment on FoCal
« Reply #21 on: November 07, 2012, 05:33:40 PM »
I've only done 2 lenses so far, my 85mm 1.8 (which comes up with a different number, near zero, each time) and my 50mm 1.4 that won't calibrate at all.

Lighting I think is an issue, but the mac beta says sorta weird things about iso, so who knows . . . not a lot of time on my hands :)
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Re: 60D Microfocus Adjustment on FoCal
« Reply #21 on: November 07, 2012, 05:33:40 PM »