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HomeAircraftHelicopterAerial Photography and Video › What camera?
02-11-2008 03:57 AM  10 years agoPost 21
CKY

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Sunshine Coast, BC, Canada

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The EFS means short back mount, only for crop sensor cameras. The 18-55mm still requires the 1.6 crop conversion.

The focal lenghts are ALWAYS the 35mm sensor equivalent. Must be crop factored.

Short back lenses only fit the Rebels, and other 1.6x sensors. Trying to mount the EFS lense on a 35mm (full sensor)format camera will give mirror interference.

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02-11-2008 09:02 AM  10 years agoPost 22
harrysvr

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eu

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I may end up to 450d and the standard lens (ef-s 18-55 f/3.5-5.6 IS),
upgrades later...
Thanks all of you.

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02-11-2008 01:02 PM  10 years agoPost 23
snurre

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Sweden, Stockholm

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Things to check up / consider
I too am in a current process of investing in a DSLR camera for aerial photo. First I was quite convinced to go for a DSLR with live view. After consulting my brother who happens to be a digital camera technology professional, I learned that there are not only advantages with the current live view solutions. The main issues to consider are:
1) Autofocus. Fore some brands/types AF is not working or working with poor performance. The camera might use different auto focus technologies when in live view mode versus normal viewfinder mode. If the camera will be used on fixed manual focus, ok, no problem. But I want the option of good airborn AF.

2) Noise. While in the live view mode, the sensors working temperature raises, causing additional image pixel noise.

3) Power consumtion. If battery endurance is an issue, live view will probably shorten the battery time.

So, I have somewhat reluctantly accepted that for now I will probably end up with a video-on-the-viewfinder downlink solution.

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02-11-2008 03:55 PM  10 years agoPost 24
kookboy

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Vancouver, BC

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Hello,
until now I`m using my compact nikon 7900 with the urbi interface for shutter also a downlink system with 12v camera etc.
I want to upgrade to a dslr camera with live view and the same urbi interface for triggering(AP use).
Since you're already using a Nikon and the urbi interface, why don't you go for a D40x with the kit lens ?

Lightweight and the 18-55 is nice and sharp for a cheap lens.

Jesse

... But honey it was only $$$

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02-11-2008 11:44 PM  10 years agoPost 25
Rappy 60

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Paris, France

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The EFS means short back mount, only for crop sensor cameras. The 18-55mm still requires the 1.6 crop conversion.
I stand corrected. Guess I was under the assumption that they pushed back the focal point to fill the sub frame sensor, since I don't shoot with them. Guess they do it to save on glass and weight.

Dale

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02-12-2008 06:02 PM  10 years agoPost 26
vrwired

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Boulder County, CO

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I have the 350D, the 20D & the 40D. none of these will give you a live video link back to mother earth.
macsgrafs.. I believe your comment about the 40d not being able to transmit to mother earth is wrong.. the 40d does have live view out.. you just don't get AF with it.. so one would use Infinity Focus.

I just want to make sure someone did not get the wrong information.

JR GSR260 - Mark IV Cam Mount
Trex 600NSP
Trex 600 to 700 Stretch
Trex 450SE
Hornet X3D

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02-13-2008 04:16 AM  10 years agoPost 27
thrx

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Montreal, Canada

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1) Autofocus. Fore some brands/types AF is not working or working with poor performance. The camera might use different auto focus technologies when in live view mode versus normal viewfinder mode
They all use secondary AF methods, a DSLR needs to have the mirror down for the AF engine to work, because the CMOS sensor used for AF is part of the pentaprism viewfinder assembly, that is in the dark while the mirror is up (so the imaging sensor can produce the live view). These alternative AF methods used by both Canon and Nikon, are, at best, only as good as the basic AF you get in a mid-range consumer digicam. Crap... in other words.

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02-13-2008 07:10 AM  10 years agoPost 28
dhotamis

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Los Angeles, Ca, United States

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Hey guys, I am rying to decide for my new camera for the helicopter I have and I was looking for the Panasonic Lumix DMC-FZ50
Let me know if that is a good fit.
My intentions are: taking wide angle shots and big sharp prints.
This camera is 10.1 mp and really light, on top of Panasonics image stabilization tech., and lens the lens on it seems nice. I can fit some lens adapter on it and it is really light. So tell me what you think.
Check out my gallery for my AP ship and the link for the camera please.

(http://www.bhphotovideo.com/c/produ...tal_Camera.html)

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02-14-2008 06:55 PM  10 years agoPost 29
Rappy 60

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Paris, France

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These alternative AF methods used by both Canon and Nikon, are, at best, only as good as the basic AF you get in a mid-range consumer digicam. Crap... in other words.
I partially disagree. The way Nikon gets around this is to flip up the mirror focus using the prism then flip the mirror back down back to live view. So essentially you are using the same auto focus method although its in one shot mode and not continuous. Canon uses a different technique that uses a contrast method of the live sensor which is not as good as the mirror AF.
This camera is 10.1 mp and really light, on top of Panasonics image stabilization tech.,
Forget about the stabilization technology..ie turn it off, its a waist of time for high frequency vibrations, in fact it will probably hinder the quality of the image.

Dale

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02-14-2008 11:09 PM  10 years agoPost 30
Hogster

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Surrey, UK

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As far as I'm aware, the 40D cannot be focussed by any means other than manually whilst in LiveView. The only way around this is to press the AF-ON button which temporarily drops the mirror down, allowing the camera to focus, then flipping it up again to regain the LiveView image.

David

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02-14-2008 11:25 PM  10 years agoPost 31
Rappy 60

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Paris, France

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I was talking about the XSI that is comming out, it is apparently using some sort of contrast software to determine auto focus. Of course this is all speculation as the XSI has only been announced on paper and subject to change at canons discretion. Indeed the 40D flips the mirror like the Nikon.

Load "*",8,1

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02-14-2008 11:32 PM  10 years agoPost 32
Hogster

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Surrey, UK

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Oh sorry, my bad.

David

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