Recent content by desmond5529

I thought the sensor size difference was compensated by changing the CoC value from 0.03 to 0.02 when calculating the hyperfocal distance? The focal length just remain the same.

Now crystal clear. Thanks to all the experts. Focal length remains the same regardless of whatever sensor I use. The only thing I need to change is CoC from roughly 0.03 to 0.02 when calculating the hyperfocal distance.

Initially I posted it in Nikon section as it's related to DX lens but later I feel that this is also applicable to other users as well. My apology for that and thanks a lot for the answer. I did a lot of readings on this subject these few days and came up with a conclusion. Correct me if I'm...

I did a lot of readings on this subject these few days and came up with a conclusion. Correct me if I'm wrong. Focal length is defined as "distance from the middle of the lens to its focal point". So the distance from from the middle of the lens to the camera's sensor is same regardless of...

I posted this question in Nikon section. As it's related to general photography, so I think it would be good to post it here as well. I've a few questions regarding DX lenses and hyperfocal distance. 1. As I know DX lenses are designed for APS sensor on Nikon dslr. I'm using Nikon D40...

Thank you very much. Knpan has put up another good question. To summarize all 1. For hyperfocal distance, set the lense's focal length according to the focal length on the chart. NO multiplication needed. 2. For 1/focal length rule to prevent image blur, multiply the lense's focal...

I've a few questions regarding DX lenses and hyperfocal distance. 1. As I know DX lenses are designed for APS sensor on Nikon dslr. I'm using Nikon D40. When looking at the focal length scale on the lense, do I still need to multiple that with 1.5? Or the focal length on the lense has been...

Do you think it's a good deal? Anybody got a better deal than this one?

I got it from AP at $600 (with gst). Free 128MB CF card from Canon (the promotion end last month).