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- This topic has 1 reply, 2 voices, and was last updated 3 years, 4 months ago by Anonymous.
May 25, 2008 at 8:03 PM #45215AnonymousGuest
Recently I have been on twoshoots where video cameras were restricted to the back ofvery largehalls and as a result the tightest shot I could get of the speaker at the podium up frontwas a three quarter shot. I use a VX 2100.Is therea lens that I can add on to my existing 12 to 72 mm. lens to bring the subject in closer? And would adding on such a lens require more exposure? I don’t like using digital zoom.
May 25, 2008 at 8:33 PM #188090AnonymousInactive
Yeah, digital zooms are vastly inferior to optical zooms. And there are a variety of lens add-ons that will meet your needs.
A lens add-on is screwed into the filter ring at the very front of your lens. My usual problem is the opposite of yours, I can’t zoom wide enough to get the shot I want. So I purchased a third party wide angle add-on. And it has worked great for me. You can do the same thing in the telephoto range. Since the filter diameter is 72mm, you’re going to be adding a big chunk of glass on the front end. And it will be way more expensive than the consumer wide angle & telephoto adapters you see in retail stores. I purchased mine from B & H Photo since they had a nice selection and were more likely to let me exchange for a better adapter if I wanted to. But you can purchase both wide angle & telephoto add-ons from Sony; they are listed in the accessories booklet that comes with the VX2100.
When selecting your adapter (or add-on) the amount of change in viewing field is a multiplicative factor. I have a .65 wide angle adapter. So to know what the new lens will be, I just multiply the primary lens zoom setting by the add-on’s lens factor. In the case of a telephoto adapter, the number is going to be 1.something. A 1.5 lens factor would give you a telephoto of 72mm times 1.5 or the equivalent to a 108mm zoom lens.
Unfortunately, when there’s more glass, there’s light loss. So you’ll want to select the smallest factor that will work for you as that will have the least amount of optics. But locked down on a tripod, it isn’t going to too much of a limiting factor. But you will really need a good, fluid head tripod if you have to be panning and zooming much. Friction drag heads just can’t compete with fluid when it comes to smooth motion when you are zoomed all the way in.
So check out B & H Photo to see your range of options and make a selection. But you’ll want to get the best adapter you can afford. Discount add-on’s are notorious for degrading the image quality. And by the way, don’t forget to take any filters you already have on the lens before you attach the add-on. The mathematics for the lens were calculated that way so moving the add-on farther from the prime lens will automatically degrade image quality & focusing accuracy.
Good luck with your future shoots.
May 25, 2008 at 10:44 PM #188091AnonymousGuest
Hey BarefootMedia, I was only just now reading your comments with respect to PC and Mac and how amused I was. It reminded me of the time when I used to be a “film man” in the eighties and I resented the inroads that video was making. I used to feel video was inferior and always got into arguments in defence of film. Right now though, I am for PC but as I don’t know much about Mac I’ll keep away from arguments.
Thanks for yor advice. You seem to possess a lot of savvy. I will certainly check B & H. I would want a good quality adaptor but if it’s too expensive I might be better off buying a camera with more telephoto.Know of any?By the way, why doesn’t B & H advertise in Videomaker any more? I guess there was an explanation in Videomaker, but if there was,I missed it. It was through Videomaker that I got to know of B & H and anytime I’m in the Big Apple B & H is always on my itinerary.
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