I recently acquired a canon 5d mk II with a tamron 17-35mm lens. I'm just a hobbyist who loves to photograph nature, and landscape including
flowers etc. I've used this lens many times in shooting the above, the results are often good, not great. i'm not a professional, but, i recognize
very good results from experience. I do not think this lens together with the 5d II will produce the result i'm shooting for. I'm looking at the canon
17-40-and 16-35mm. I've read your articles, and your answers to questions are satisfying. any recommendation will be welcome.

There have been two claims repeatedly cited as the benefits of the use of ETTR/EBTR.

1. Noise reduction. But ETTR does not reduce the noise in an image. Noise is reduced by additional exposure. I have provided abundant evidence, procedures and proof of this. I will show links to this evidence shortly.

2. ETTR results in better tonal rendition. This has never been demonstrated.

Claims that ETTR reduces noise are still being made despite clear evidence to the contrary. This has now gone beyond mere error, opinion or lack of understanding. In the face of the clear evidence I have provided in the past this claim is simply not truthful.

In the next post I will show once more the effect of additional exposure on noise as well as the effect of applying ETTR to a high ISO capture and adjusting the exposure accordingly.