Friday, January 17, 2014

Can someone help with a question concerning a DEPTH OF FIELD issue in filmmaking?

best camcorder with shallow depth of field
 on Stock Shot Project: June 2011
best camcorder with shallow depth of field image



Jackie


I'm looking at buying a new HD camcorder for indie filmmaking. My question is, do I REALLY need a 35mm adaptor to achieve the shallow depth of field look that appears in my mainstream movies at the theater?

Also, is a DoF adaptor the same thing as 35mm adaptor or are they two different types of adaptors?



Answer
A depth-of-field adapter (often shortened to DOF adapter) is used to achieve shallow depth of field on a video camera whose fixed lens or interchangeable lens selection is limited or economically prohibitive at providing such effect. These set-ups are made with a 35mm lens mount adapter (by brand and mounting configuration). Thus that allows the user to use regular D-SLR lenses. There are a several companies making DOF adapters for brand specific camcorders. The cheapest may be the Letus35 Mini which costs around $800.00 (US). There are other brands and other set-ups depending on your camera and your budget. The other alternative is the new D-SLR cameras that can record HD video as well as high resolution still images. Canon EOS Rebel T2i (1080 HD) and the Nikon D5000 (720p HD) are a couple of the less expensive ones. By being able to change the lenses allows you to control DOF.

What lens should I get for my Canon Rebel T3i?




Sebastian


So pretty soon I'll be getting a brand new Canon Rebel T3i because I'm an aspiring filmmaker. That being said, I want to be able to achieve shallow depth of field and great focal length in order to get the best low light performance possible. I'm also on a budget and Google isn't really working for me.
What lens or lenses should I get to begin with in order to achieve really good low light performance and really good bokeh? Or what lenses do you guys know that are great for DSLR filmmaking? Please share your opinions, thoughts, and experiences with lenses you guys have used, and personal recommendations would be the best.
Thanks!



Answer
Hmmm, not sure you should be buying a DSLR if you are just going to use it for video. Seems like overkill to me. These cameras are designed for still photography first and foremost. Video is a recent addition to their repertoire.

If you want nice depth of field effects with a DSLR you need a lens with a wide minimum aperture, Wide angle lenses aren't going to give you as much background blurring as more telephoto lenses.
Understanding depth of field http://www.cambridgeincolour.com/tutorials/depth-of-field.htm - Wider apertures also help in low light conditions. Generally the wider the minimum aperture the more expensive the lens. A good wide angle to telephoto zoom with a wide minimum aperture is going to cost you way more than a semi-pro video camera.

Get a semi-pro video camera instead. It'll be cheaper. Check this one: http://www.pixmania.co.uk/professional-camcorders/canon-legria-hf-g25-camcorder-high-definition-black/21007227-a.html - I'm not sugestin you get this particular camera, but it's an example of what's available to aspiring film makers.




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