Frequently Asked Questions
Do I need to have the standard Chrosziel/Arri 15mm rods to use the Rain Deflector?
You will need the 15mm rods if you are using the Spintec Rain Deflector with external focus lenses. Spintec sells a bracket that allows you to mount the Rain Deflector onto 15mm rods. If you are using internal focus lenses, then you will not need the rods. You may use the clip-on feature. The exceptions are the Canon J9A x 5.2B and the Fujinon A10 x 4.8 lenses.
Can I use the Rain Deflector RD105 with the Canon J9A x 5.2B and the Fujinon A10 x 4.8 wide angle lenses?
Yes, but you will need a special bracket (see Price List <../html/spintec.html>). With the bracket, the Canon J9A x 5.2B works in both 4:3 and 16:9 formats. With the bracket, the Fujinon A10 x 4.8 works in 4:3 format. In 16:9 format, it will show vignetting in the safe area.
If the Fuinon A10 x 4.8 is used in 16:9 at full zoom, vignetting will show up in the viewfinder and in editing; however, since the vignetting occurs in the safe area, it will not show up on the TV screen. Another reason we recommend the bracket: wide angle lenses are extremely sensitive and fragile and any weight added to the lens could cause damage.
Which lenses will fit the RD105 Rain Deflector?
The RD105 can be used for all lenses with outer diameters ranging from 85mm to 100mm. If the lens is internal focus, you can use it as a clip-on. If the lens is external focus, you will need the appropriate bracket. (If your lens is listed in our Lens Chart <../html/spintec_lens_chart.html>, you will find the appropriate bracket listed there.) The exceptions are the Fujinon A10 x 4.8 and Canon J9A x 5.2B lenses. These lenses need a special bracket in order to avoid vignetting when using wide angle in 16:9 format (see Price List) <../html/spintec.html>.
The Spintec Rain Deflector manual says that the Rain Deflector operates between 10.8 and 12 volts. Camera batteries charge up to 14.8 volts. Will damage result from that?
No damage will result from that; moreover, when you run the camera, the battery voltage drops to 12 volts.
Scientifically, there is no speed in the middle of the spinning glass, so there will always be a drop of water in the dead center of the glass, right?
Yes, but the drop is so tiny--a micro-droplet--that you will never see it on television. The vacuum effect combined with other droplets being spun off continually remove any micro-droplet in the center.
What about snow?
Since snow flakes are light, they will not bounce off the spinning glass. The spinning glass creates a vacuum that sucks all snowflakes to the side.
Water and electronics do not mix well. What about breakdowns as a result?
There are no electronics in the Rain Deflector. It operates on two electrical and water-sealed motors. As a result, breakdowns will be rare.
Will salt water corrode the Rain Deflector?
No; but, we do recommend the following: after shooting, let the Rain Deflector spin and throw fresh water on it to clean the glass and the inside.
My Rain Deflector shows circles in the picture.
When water that has hit the filter evaporates, it leaves a mineral residue. This residue shows streaks/circles. They also prevent water from spinning off the glass. You should regularly rinse the filter with soap and water to eliminate any possible residue.
Can I use filters with the Rain Deflector?
Every spinning device creates a gyro effect. Why does the spinning filter of the Rain Deflector not create a gyro effect?
The spinning filter creates a gyro effect, but the Spintec Rain Deflector system working as a complete unit does not create a gyro effect.