Faster BBF
Dec 29, 2018 18:48:26 #
The problem is that when you use BBF the VR is not activated. (Pressing the release button halfway activates VR)
This means that you focus with a not stable camera with BBF! The focusing sensor will have more problems to work properly because the image will be slightly blurred by camera shake.
Solution: HalF press the release button at the same time you use BBF to give the sensor a stable image to focus on!
I have tested this and it works faster and probably more accurate!
How about this idea?
( I know that the focusing system uses two different algoritms, so you don’t need to elaborate on that)
This means that you focus with a not stable camera with BBF! The focusing sensor will have more problems to work properly because the image will be slightly blurred by camera shake.
Solution: HalF press the release button at the same time you use BBF to give the sensor a stable image to focus on!
I have tested this and it works faster and probably more accurate!
How about this idea?
( I know that the focusing system uses two different algoritms, so you don’t need to elaborate on that)
Dec 29, 2018 19:28:09 #
Elmerviking wrote:
...when you use BBF the VR is not activated....
I haven't heard this before. What camera system are you taking about, or are you saying it applies to all stabilization systems?
Dec 29, 2018 19:36:20 #
I have a Nikon D7100.
I talking about Nikon in the lens VR. I suppose this is valid for all Nikon cameras. It would be great if you could program the BBF button to also activate VR...BUT I don’t know if that is even possible.
I talking about Nikon in the lens VR. I suppose this is valid for all Nikon cameras. It would be great if you could program the BBF button to also activate VR...BUT I don’t know if that is even possible.
Dec 29, 2018 19:44:32 #
Dec 29, 2018 20:06:07 #
I Have Thousands of sharp captures using BBF on my Nikons.. How many you got using your method?? P.S. when possible I use a shutter speed greater than the focal length I'm using so I don't have to use VR to start with. This lets the lens focus faster in the long run. I've got thousands of sharp images using this manner as well..
Elmerviking wrote:
The problem is that when you use BBF the VR is not... (show quote)
Dec 29, 2018 20:38:44 #
Is this your own observation or are you being 'helped' into this idea by some source information?
The problem is that when you use BBF the VR is not activated. (Pressing the release button halfway activates VR)
The problem is that when you use BBF the VR is not activated. (Pressing the release button halfway activates VR)
Dec 29, 2018 20:43:29 #
I am not familiar with your D7100 model. However I can tell that on the Nikon Df if in the menu you go to custom settings A and scroll to autofocus and tab to a4 AF activation and then select AF-ON only, and “OK” what you want to achieve happens automatically. Perhaps your menu system is the same or similar, but I don’t know. If not maybe you’re stuck with what you’re now doing. Good luck
Dec 29, 2018 21:02:25 #
CHG_CANON wrote:
Is this your own observation or are you being 'helped' into this idea by some source information?
The problem is that when you use BBF the VR is not activated. (Pressing the release button halfway activates VR)
The problem is that when you use BBF the VR is not activated. (Pressing the release button halfway activates VR)
Well, I guess you don’t understand. When I Use BBF on a stationary subject, I press the BBF button and when it indicates focus I let go off the button. VR is then activated when I press the shutter release...not while the BBF is NOT pressed! Is that so hard to understand?
Dec 29, 2018 21:06:39 #
pesfls wrote:
I am not familiar with your D7100 model. However I can tell that on the Nikon Df if in the menu you go to custom settings A and scroll to autofocus and tab to a4 AF activation and then select AF-ON only, and “OK” what you want to achieve happens automatically. Perhaps your menu system is the same or similar, but I don’t know. If not maybe you’re stuck with what you’re now doing. Good luck
So you are saying that VR is activated by the BBF button? I doubt it!
What if you just focus on a stationary subject and then....seconds or even minutes later take the picture?
Is the VR activated all the time? Doubt it, even if I am not familiar with the Df.
Dec 29, 2018 21:08:04 #
Elmerviking wrote:
Well, I guess you don’t understand. When I Use BBF on a stationary subject, I press the BBF button and when it indicates focus I let go off the button. VR is then activated when I press the shutter release...not while the BBF is NOT pressed! Is that so hard to understand?
That's not how it works on a Canon. Although I don't have a D7100 / VR-enabled lens handy, I'll confidently go out on a limb and assert it doesn't work that way on a Nikon either, unless you haven't configured the buttons correctly. It's not which button that actives AF, it's the AF system and whether the IS / VR is enabled on the lens with the activation of the Autofocus system. You might too want to consider how you've configured the focus vs release priority, see D7100 page 231.
Dec 29, 2018 21:16:29 #
martinfisherphoto wrote:
I Have Thousands of sharp captures using BBF on my Nikons.. How many you got using your method?? P.S. when possible I use a shutter speed greater than the focal length I'm using so I don't have to use VR to start with. This lets the lens focus faster in the long run. I've got thousands of sharp images using this manner as well..
I only claimed that the method I mentioned work faster and “probably” more accurate before you press the shutter release.
Try it and you will see!
Dec 29, 2018 21:18:39 #
CHG_CANON wrote:
Is this your own observation or are you being 'helped' into this idea by some source information?
The problem is that when you use BBF the VR is not activated. (Pressing the release button halfway activates VR)
The problem is that when you use BBF the VR is not activated. (Pressing the release button halfway activates VR)
This is my own idea, and I tested it and noticed a faster focus confirmation, specially in low light.
Dec 29, 2018 21:37:31 #
CHG_CANON wrote:
That's not how it works on a Canon. Although I don... (show quote)
Nikon actually has two different algorithms for the VR. When you press the shutter release halfway it uses an algorithm that stabilizes what you see in the viewfinder and when you press the release all way down it uses another algorithm ( more final). I said that when you use BBF why not take advantage of this? That actually makes focusing faster because you “partially” eliminate camera motion blur so the sensor works faster.
Test it!
Have you ever tried burst mode? You will find that if you do the second picture will most of the times be the sharpest!
I believe it is mostly because it takes some time for VR to kick in.
Dec 29, 2018 21:42:18 #
Elmerviking wrote:
This is my own idea, and I tested it and noticed a faster focus confirmation, specially in low light.
If you are pressing both buttons at the same time, why bother with BFF? Use the half press for focus and assign the back button to lock focus for when you want to focus and recompose.
---
Dec 29, 2018 21:48:39 #
Exactly what I was trying to convey. If you use the shutter release or bb on my Nikon and have a VR lens mounted with VR on either activates the VR. This occurrs with either a half push of the release or the bbf button depending on what paramaters you’ve set.
CHG_CANON wrote:
That's not how it works on a Canon. Although I don... (show quote)
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.