The Tiffen 4 x 5" 1 Tropic Blue Soft-Edge Graduated Filter helps to specifically add a cool, greenish-blue coloration to skies and other bright areas of an image while allowing a portion of the image to remain neutrally colored. The filter's coloring is densest at the edge and tapers to clear by the middle, with a soft-edged transition between the density and clear areas. The 1 color density provides less tropic blue coloration than the 2 density filter.

This filter is made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding flat to a tolerance of 1/10,000th of an inch. It measures 4 x 5" / 101.6 x 127mm.

Note: A vertical orientation filter's line of transition runs parallel to the short side of the filter.

1 Density Color Graduated Filter    Tropic Blue Coloring in Select Areas    Soft-Step Graduation    ColorCore Technology

Provides a deep greenish blue coloring to select areas of the image.

Graduated filter design keeps a portion of the image neutral, resulting in a more realistic look while allowing for the sky or other bright areas to take on the color of the density.

Related Questions and Answers

Q: 1. How to prevent it from getting loose? I've been using the camera with BlackRapid strap so worrying the camera will fall off without attention.

A: I have never had a problem with it. Perhaps you have a bad one.

Q: 2. What type battery does it use! How long can it tow a 170 pound scuba diver?

A: The Nautica GUPPY Seascooter has a rechargeable internal battery. We estimate that it would tow a 170lbs scuba diver for around 30 minutes.

Q: 3. Would there be enough clearance to rig a Sony FX6 stripped down without the side handle?

A: Yes, if you mount the Sony FX6 on the top-most threads, there will be enough clearance for the camera without the side handle.

Q: 4. Is it compatible with the upcoming sony a7 iii?

A: Hi Andy, Yes it is.

Q: 5. So older Sony grips for the mirrorless bodies (A7IV, A1, etc) will or won’t work on this A9 III?

A: The Sony VG-C5 Vertical Grip is compatible with the Sony A9III camera. It is common for camera manufactures to offer new battery grips for new models. The older grips will not fit the A9III.

Q: 6. I have just two batteries. Will it operate with one in the camera and one in the grip or does it require two in the grip and one in the camera?

A: The grip replaces (fills) the space of the battery in the camera - you can now have one or two batteries in the grip. As they weigh almost nothing, carrying two batteries in the grip is the best strategy - they'll automatically switch over when the first one is exhausted. You get real-time percentage charge available display in the viewfinder.

Q: 7. Is it compatible with a7IV?

A: It is not. For the Sony A7iv the compatible battery grip is the Sony VG-C4EM. Here is the link. https://www.bhphotovideo.com/c/product/1494689-REG/sony_vg_c4em_vertical_grip_for_a7r.html

Q: 8. Is this grip compatible with Sony A7ii?

A: This grip is only compatible with the following camera bodies: Alpha a9 Alpha a7 III Alpha a7R III

Q: 9. Does it float or do I have to hold it up when not running? How long to recharge the battery?

A: The Nautica GUPPY Seascooter floats on its own, has a battery runtime of 30 minutes, and takes about 2–3 hours to charge.

Q: 10. How much rackmount space is there? 20U? 15U? etc.

A: The Proaim CT-SDCF-01 Soundchief Cart provides 16 rack units (RU) of space for mounting equipment.