Video mode still vs. normal DSLR image
Mar 16, 2015 08:19:04 #
I was trying to get a photo of my daughter doing some archery yesterday with the arrow in the photo after being released. After 8 tries at 7 fps and about 60 pictures, I only got one shot with the very end of the arrow in the shot.
Anyhow this got me thinking why not try video and taking out one frame as a photo (obviously not a new technique, just one I cringe doing!!)
I haven't done it yet but it would be at 30 fps which obviously is not being done by a mechanical shutter. I assume it is an electronic shutter with the sensor discharging at a rapid rate to give 30 fps.
Finally to my question (and my tests tomorrow should answer my question), how does the quality of the two compare being that you are using the same lens and camera settings?? My hope is that the video, even in 1080p, is not nearly the quality because the camera firing at 7 fps sounds really cool as compared to the boring video!!
Anyhow this got me thinking why not try video and taking out one frame as a photo (obviously not a new technique, just one I cringe doing!!)
I haven't done it yet but it would be at 30 fps which obviously is not being done by a mechanical shutter. I assume it is an electronic shutter with the sensor discharging at a rapid rate to give 30 fps.
Finally to my question (and my tests tomorrow should answer my question), how does the quality of the two compare being that you are using the same lens and camera settings?? My hope is that the video, even in 1080p, is not nearly the quality because the camera firing at 7 fps sounds really cool as compared to the boring video!!
Mar 16, 2015 09:20:23 #
Revet wrote:
I was trying to get a photo of my daughter doing s... (show quote)
Your angle in relation to the flight path of the arrow will make a big difference in how long the arrow stays in frame. If you are 90 degrees off to her side you will get the least time. Directly behind her will give you the most, but you won't get her face. Something like 45 degrees might be a good compromise. I wouldn't recommend standing in front of her! :shock:
As far as a video capture photo, I can't say. Just shoot some video of anything under similar lighting conditions and see what you get.
Mar 16, 2015 11:31:19 #
I was at about 45 degrees. I was using a 60 mm lens, I am going to try with a 35 mm tomorrow to expand the angle of view. I also am going to try video to see how it comes out. I thought being at 180 degrees would have been really cool but my camera and lens are just too new to give that one a try!!! My daughter never misses the target but there is always a first!!
Mar 16, 2015 13:34:01 #
Revet wrote:
I was at about 45 degrees. I was using a 60 mm lens, I am going to try with a 35 mm tomorrow to expand the angle of view. I also am going to try video to see how it comes out. I thought being at 180 degrees would have been really cool but my camera and lens are just too new to give that one a try!!! My daughter never misses the target but there is always a first!!
Just a suggestion, but here is what I would try:
Frame the shot so that your daughter is on one side of the photo and the target on the other. Focus on your daughter because you will want her features to be clear. Focus and recompose if necessary. Give yourself as much DOF as possible while still using a fast shutter speed. The entire flight path of the arrow will be in the frame so you should catch the arrow in flight. Have her move closer to the target if necessary. Have someone give an audible command to shoot so that you can start shooting the instant she does. This is the kind of shot that requires a bit of practice to get right.
Mar 16, 2015 15:42:26 #
Thanks, I really want to get a shot somewhat close up of my daughter with the arrow just leaving the bow. Tough one I know. If I get a good one, I'll post it. I do have one with about 1/4 of the arrow showing so maybe with another 8-10 arrows on 7 fps, I can get it. I tell her go at the same time I depress the shutter. I get three or four shots of the arrow still on the bow and then generally its gone after that. I will keep trying. No one ever said getting the picture you want is easy.
Mar 17, 2015 07:49:51 #
You will not get good quality. This link discusses the topic.
http://forums.cnet.com/7723-7594_102-536148/want-hi-res-photo-from-hd-video/
http://forums.cnet.com/7723-7594_102-536148/want-hi-res-photo-from-hd-video/
Mar 17, 2015 08:05:16 #
1080p gives about 2MP per frame, which isn't great. However, if you can borrow/rent/buy a camcorder/camera that's 4K capable, the resolution per frame goes up to about 10MP.
Things'll get more interesting when 6K and 8K come out, giving resolutions in the high twenties and low thirties. I haven't tried video myself yet, but it always seemed to me to be an obvious choice for sport, nature, BIFs, children etc.
Things'll get more interesting when 6K and 8K come out, giving resolutions in the high twenties and low thirties. I haven't tried video myself yet, but it always seemed to me to be an obvious choice for sport, nature, BIFs, children etc.
Mar 17, 2015 08:56:04 #
what is the effective shutter speed of video? Meaning....would a single frame of video "stop" the arrow?
Mar 17, 2015 11:12:04 #
Psergel wrote:
what is the effective shutter speed of video? Meaning....would a single frame of video "stop" the arrow?
This is the reason you rarely get a sharp still from a video. Video is capturing motion. Because of the shutter speeds used even a single frame will have motion in the frame. That's okay for the video but not for sharp still pictures.
Mar 17, 2015 12:12:26 #
imagesintime wrote:
......Because of the shutter speeds used even a single frame will have motion in the frame. That's okay for the video but not for sharp still pictures.
Does that apply to video-capable DSLRs?
Mar 17, 2015 16:48:06 #
Mar 17, 2015 21:19:37 #
I did a shot for a friend like this;but I cheated. I attached the arrow to a dowl rod and pushed it out past the rizor and took the picture with him at full draw with no arrow. Later I removed the dowl rod from the picture;Viola arrow just out of the bow and the string was fuzzy because I had him pluck the string just before putting his hand to his cheek. It looked real and I wish I kept a copy. He has since moved so I can't even get one. If you don't mind a little trickery this will work.
Mar 18, 2015 22:42:29 #
Got the arrow in flight. If you enlarge it, it looks like it was photoshop-ed. I didn't touch the arrow or my daughter in PS but I had to mask them out to clean up my neighbors yard a little with the clone stamp. It looked a little like Sanford and Son!!! Put a little blur and desaturation into it also because it is way too busy. I think if I did it again, I would use a slower shutter speed to give a sense of movement to the arrow instead of freezing it. Mission accomplished though. I did try video and the quality wasn't too bad but not as good as a photo. Not nearly as much fun either.
Mar 19, 2015 11:21:56 #
Here is a still from a video. It has not gone through any PP in photoshop but I did do a little in Lightroom for exposure and contrast. I did not do any noise reduction so don't use that as a comparison with the non-video photo from above.
Mar 19, 2015 12:35:38 #
What is even more interesting about the video shot over the still is that it looks like you captured the arrow bending under the force of being shot out of the bow.
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