Highlight tone priority (HTP) with 40D

Started Sep 9, 2007 | Discussions thread
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Badbatz
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Highlight tone priority (HTP) with 40D
Sep 9, 2007

I am a bit disappointed in this respect: 40D with HTP adds a stop or more of noise in the shadows whereas the Mk. III adds much less – three-quarters of a stop at most in my experience. With 40D and HTP on, the noise level @ ISO 200 is pretty much higher than with ISO 400 sans HTP. And the noise level with ISO 3200 and no HTP is a bit lower than at ISO 1600 with the HTP on. (Setting the HTP on precludes using ISO 100 and 3200 in D40.) Now, HTP has merits: I shot 2 cars – white and “Volvo moondust”, sort of grayish-bluish- side by side and the detail level on the white car was significantly improved with HTP but the noise level in the shadows – and on a darker, but faaaaar from black, surface of the other car - was annoying.

Anybody care to share experiences with the HTP and 40D?

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