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Sunpak 120JTTL & Canon 20D


jay_fisher1

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You can only use the 120JTTL in auto thyristor or manual mode with the 20D. The TTL part does not work with ETTL II, which is the flash implementation of the 20D. However, in auto thyristor and manual, the flash would work well--although you only have 3 auto apertures in auto thyristor. I have both items but don't use them together--I've used the 120J off camera with the 20D/580EX.
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Metz units are more accurate on the auto sensors compared to the Sunpak strobes.I have the Sunpak 120jttl but the interface module

is obsolete for today's technology, it uses Canon's old TTL, three

generation older to the more advanced ETTLII, my use for the 120j

is on a light stand/umbrella combo on manual mode for formals, or on location for backlight on bridal settings.It is a very good back up versatile strobe.

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