What is a good guide number for a flash?
Flash Guide Number Formula
| Guide Number | F-Stop | Flash to Subject Distance |
|---|---|---|
| 40 | f/4 | 10 feet / 3 meters |
| 80 | f/4 | 20 feet / 6 meters |
| 120 | f/4 | 30 feet / 9.1 meters |
| 160 | f/4 | 40 feet / 12.2 meters |
Do you need TTL for HSS?
If you need HSS (high speed sync) then you want TTL. Manual flash is limited by your camera’s shutter speed. TTL and a compatible camera allow a way around this to shoot at speeds up to 1/8000s. If you’re just starting out HSS is not really something to worry about.
How is flash guide number determined?
For any given “correct flash exposure” situation, guide number is simply numerically equal to the aperture number (like the number 8 in f/8) multiplied by the subject distance (like 10 feet). Then for example, the guide number is f/8 x 10 feet = GN 80 (feet units).
Is the Nikon D7000 really worth it?
Even though the D7000’s technical image quality and ergonomics are stellar, and it’s viewfinder is as good as Nikon has ever made for DX, it’s still much smaller than the finders of FX cameras. Those of us who shoot all day, every day, prefer the huge viewfinders of FX cameras.
What’s new on the Nikon D7000 mode dial?
New: U1 and U2 positions on the D7000’s mode dial. The D7000’s U1 and U2 positions finally address my biggest beef with Nikon, which is the lack of any fast way to save and recall complete banks of camera settings.
What do you think about the Nikon D7000 U1 and U2?
The D7000’s U1 and U2 positions finally address my biggest beef with Nikon, which is the lack of any fast way to save and recall complete banks of camera settings. With all my other older Nikons, it takes too long to reset a camera to go from people to landscape photography, so I keep one camera for each kind of shooting.
Does the Nikon D7000 have a focus motor?
There is a focus motor in the D7000, so it works with every AF lens made since 1986. Even better, there’s an aperture-ring feeler, so it meters with all AI and newer (1977-on) manual-focus lenses. The D7000 also gives full-color Matrix metering and EXIF data with manual-focus lenses if you share the lens’ data in a menu.