Hi.....I was reading this section from dpreview on focal length multiplier and I have some doubts which I hope some expert can clarify.
Based on the last sentence, does that mean a digital compact will give sharper images on objects in front and behind it compared to DSLR or film as its DOF is larger?
http://www.dpreview.com/learn/?/key=focal_length_multiplier
Oh and dont mind one more question....those focal lengths listed on digital compacts and lens for DSLRs.......are these the 35 mm equivalent? If no am I right to say that I must
1. multiply by 1.5 for DSLR lens focal lengths to film
2. multiply by 4 for digital compact focal lengths to film?
Footnote on Digital Compact Cameras
Digital compact cameras are fitted with lenses with short focal lengths to create 35mm equivalent field of views on their small sensor surfaces. Typically the sensor diagonal is 4 times smaller than the diameter of 35mm film. A 7mm lens fitted on such a camera will have the same field of view of a 7mm x 4 or 28mm lens on a 35mm film camera. Just like the digital lenses for digital SLRs, these lenses are designed to generate image circles to cover the smaller sensor. This allows these lenses to be much smaller and cheaper to manufacture. Because of the very small focal lengths used, the depth of field is much larger (2) than digital SLRs or 35mm film cameras with the same field of view.
Based on the last sentence, does that mean a digital compact will give sharper images on objects in front and behind it compared to DSLR or film as its DOF is larger?
http://www.dpreview.com/learn/?/key=focal_length_multiplier
Oh and dont mind one more question....those focal lengths listed on digital compacts and lens for DSLRs.......are these the 35 mm equivalent? If no am I right to say that I must
1. multiply by 1.5 for DSLR lens focal lengths to film
2. multiply by 4 for digital compact focal lengths to film?