Frage von Auf Achse:
Hello!
I would be interested in the following: Where are on cameras like the Canon XH A1 and HV40 limits (in both directions) and optimal values for Aperture and Shutter?
Example: When it comes to small aperture for edge diffraction, when the depth is too great a very small (unless you want that)
For too long shutter jerky and wipes the Picture .... when it comes to short synonymous with undesirable effects? Where are the cameras for the above mentioned limit and optimal values.
The whole course is still associated with gain and ND filters ... I've forgotten something?
If I'm shooting in very bright sunlight, it is certainly not sufficient just to shut the Aperture hochzudrehen full or just the shutter. I am concerned about the optimal adjustment of these factors to select it.
Thanks and regards,
Auf Achse
Antwort von tommyb:
Each lens achieved at a certain aperture its maximum quality. This value varies of Lens to Lens, but he is always there.
If you want to find out the maximle sharpness of your lens, then you should you a test with a Siemens star chart and try out all the stops for a fixed shutter to print. Check out the Picture then later s.and in a 1:1 pixel representation compare the sharpness.
The shutter speed should always be 1 / 50, no preference what's coming. Shorter shutter speeds (1 / 250, 1 / 1000) can only Beweungen look sharper and are more than suitable for when you want rausholen from the video, the aniframes (so you can print on my account). A high motion sharpness is synonymous of advantage if there is to be used later in the mail any framerate tricks, such as special-slow motion on the basis of the resulting vector calculations.
To affect the image brightness, the shutter is not necessarily appropriate, but rather a stopgap measure.
Conclusion:
With a camcorder, I would always work in a range of f4 to 8 - but it depends strongly of the goodness of Lenses from. A next open aperture (eg F1.7) is the more affordable lenses (such as HV40) have produced a lower quality than, say, f5.6. Whether one sees this difference in a moving image, is questionable. Professional Lenses (for example, for 2/3-inch cameras) can be normally. operate without problems with Aperture and synonymous open a nearly closed aperture is no problem.
If I want to have, therefore less light at the maximum (hoped-for, but may not be visible) quality, I need to work with ND filters.
PS: Much worse is the way noise. Before I risk it, I turn rather with an open aperture.
Antwort von Auf Achse:
Servus TommyB!
Thanks for your info, there's already a great deal while what my questions answered! I would still like to know why they should work with 1 / 50 shutter speed except in specified cases of thee. The 1 / 50 clear to me primarily on 220v 50Hz AC and the resulting half-frames this book. Other reasons? And how schauts in rapidly moving objects such as. Rally car from?
Thanks and regards,
Auf Achse
Antwort von tommyb:
Our eyes are the reason.
With a shutter of 1 / 25 would smear the rally car and also quite strong synonymous jerk anything. The motion blur is our eyes well, that may be on the jerk by 25 images may not be so.
With a shutter of 1 / 50 blurred the rally car still (not as strong as before, but that hardly noticeable because it is fast) and the movement is fluid. The eye is good.
With a shutter of 1 / 100, the car is no longer smeared so strongly, we can see in the pictures almost every detail, and the car slightly jerky in his movements. This is just yet to get over.
That is, in effect:
Just as our eyes see, it should be synonymous to work the camera.
The exception to this must be only when one digital (video) or analog cameras (film compares). In spite of 24 or 25p cameras jerky nothing because the motion blur offset das video image with a 24 or 25 frames, however, been jerky (the progressive problem shows itself) is especially good at panning. To compensate for the increases, just one with 50 frames on and has the "video look" (25 frames are indeed "cinema look").
Antwort von Auf Achse:
.... thank you for your good explanations!
Regards,
Auf Achse
