Hey all. Well I have a big short coming up in a week and a half and we needed some shots with a shallow depth of field. I was curious if I purchase a Telephoto conversion lense (canon brand 1.7x) from say BHphoto, will this really help on shallowing my depth of field or do you literally need an actual seperate telephoto lense (obviously not available on a dv852 for interchangeable lenses) to achieve this effect? We also might need some rack focuses. Will this conversion lense enable us to use the the focus ring to pull off large rack focuses? Finally, the canon brand conversion lenses cost a good deal more than the Raynox brand on BHphoto and the Canon is a 1.7x vs. the larger 2.0x of the cheaper Raynox conversion lense. Which is a smarter buy? FYI: I already have a Canon wide angle lense adapter and I love it, but I am a newb in the world of telephoto... thanks! -Bryan.

You can try a TC and get shallower DOF, but when you open the aperture to the min (largest aperture), you should be able to achieve quite good DOF. The only problem is that teh lighting may be too bright, in which you may need some ND filters.

Most TC only work when you zoom in to about 5x and beyond, else you'll get the black ring.

Brian, Tom Hardwick may have some good tele adaptor recommendations. Also, as Yow suggested, your cam should be able to get decent shallow depth of field with the iris wide open, since the CCD size is 1/3.8, and a strong ND is the way to achieve it.

Frank: thanks for the info. I had another quick question regarding setting up a dv852 for low light performance but I'm going to start another post.... Thanks!