Forums: Skydiving Disciplines: Photography and Video:
which still lens. HELP

 


2shay  (D 1)

Mar 12, 2007, 8:31 PM
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which still lens. HELP Can't Post

I am going to filming tandems so I was going to jump the royal lens .5x or the liquid lens .45x for video. I need to know what size fixed focal lens for a canon xt would be compatible with the .5x or .45x. Hope this all makes sense I don't know much on the technical side of cameras.

thanks, Joel


dragon2  (D 101989)

Mar 13, 2007, 1:25 AM
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Re: [2shay] which still lens. HELP [In reply to] Can't Post

It totally depends on the exact videocamera and videolens combination, all videocamera's are different and all lenses too... You will probably end up with a 16mm lens or so for stills. But best to try first.


2shay  (D 1)

Mar 13, 2007, 11:12 AM
Post #3 of 9 (793 views)
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Re: [dragon2] which still lens. HELP [In reply to] Can't Post

have a pc 109 with any of the lenses i have mentioned and have an canon xt i will be using for the stills


dragon2  (D 101989)

Mar 13, 2007, 11:34 AM
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Re: [2shay] which still lens. HELP [In reply to] Can't Post

Well yeah, but I don;'t have any of those so I can't check the FOV for you Wink


cj1150gs  (B License)

Mar 13, 2007, 1:57 PM
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Re: [2shay] which still lens. HELP [In reply to] Can't Post

Here's a reference for you:

A 15mm Canon EF lens, on my 20D (that I believe has the same 1.6 crop factor of your XT) can see 99.5 cm (39.17") wide when facing a wall at a distance of 65 cm (25.59").
I am measuring the 65 cm to the film plane index of the camera (there should be a smililar mark on you XT).

Now, just face your PC against a wall at a distance of 25.6 inches and see through the viewer how much wide across the wall you can measure.

Am I making any sense? Laugh Prolly not! Better upload a pic.
Attachments: 15mm_FOV_on_20D.jpg (50.5 KB)
  film_plane_index.jpg (42.0 KB)


2shay  (D 1)

Mar 13, 2007, 2:44 PM
Post #6 of 9 (750 views)
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Re: [cj1150gs] which still lens. HELP [In reply to] Can't Post

i haven't got the xt yet, I was posting this to basically see if I should get the body with the 18-55 lens or just get the body and get a fixed lens. So if anyone you know or have heard of is jumping this setup let me know please


Premier PhreeZone  (D License)
Moderator
Mar 13, 2007, 4:57 PM
Post #7 of 9 (732 views)
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Re: [2shay] which still lens. HELP [In reply to] Can't Post

You don't have to match exact. I have used a few lenses for my video camera that are narrower or wider then the still lens. Nothing extreme like a .3 or .2 but a few .5's and a .45 match close enough to the 18-55 lens that I'm not going to worry about 3 or 4 more inches showing or not showing in the still for most tandems.


ltdiver  (D 20506)

Mar 13, 2007, 9:06 PM
Post #8 of 9 (712 views)
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Re: [2shay] which still lens. HELP [In reply to] Can't Post

For 90 years in the sport you still look great! What's your secret? Wink

ltdiver


2shay  (D 1)

Mar 14, 2007, 5:17 PM
Post #9 of 9 (680 views)
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Re: [ltdiver] which still lens. HELP [In reply to] Can't Post

lol lots of coffe and smokes, just kiddin. I am glad to see at least someone finds my profile funny, everyone else just gets bitter.



Forums : Skydiving Disciplines : Photography and Video

 


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