The Tiffen 6 x 4" Blue 1 Hard Edge Graduated Filter is a hard-edged graduated color filter providing a bluish color across the image, giving a cooling effect for your photographs. The 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. The 1 density provides less of a blue cast than the 2 density filter.

Tiffen filters are 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. This filter measures 4 x 6" / 101.6 x 152.4mm and features a vertical orientation; meaning the filter's line of transition runs parallel to the short side of the filter.

Blue 1 Tint    Hard-Edged Graduated Filter    Vertical Orientation    ColorCore Glass

Blue tint gives a portion of the image a cooling effect.

Hard-edged graduation to clear in order to retain a neutral portion of the image.

Related Questions and Answers

Q: 1. Is it compatible with Mac OS Catalina?

A: Yes, the 8TB My Book Desktop USB 3.0 External Hard Drive is compatible with macOS Catalina 10.15+.

Q: 2. does the cable with the device plug into a USB 2.0 connector?

A: Yes, you can plug the WD 12TB My Book Desktop USB 3.0 External Hard Drive into a USB 2.0 connection, but please keep in mind that the transfer speed would be limited to that of USB 2.0.

Q: 3. I see a power switch on the back plate. Does the power switch stay physically pressed when it has no power? Meaning, if the power goes out and after the UPS is dead dry... will it power itself ON when the power comes back or will someone need to press the switch again? Thinking of remote locations.

A: There is no power switch on the back of this drive

Q: 4. The overview seems to indicate that ExFat will work with Time Machine. Is this true? Not that it's hard to re-format, but it would be nice to know.

A: exFAT formatted drives would not work with Time Machine. You would need to reformat the drive to HFS+.

Q: 5. What is the RPM of the drive?

A: This model is 5400 RPM.

Q: 6. Does this support Windows 11? Owner manual pdf says windows 10, WD website says 10+.

A: The WD 6TB My Book Desktop USB 3.0 External Hard Drive is compatible with Windows 11.

Q: 7. does it come with usb?

A: Yes, it comes with a 3.0 USB cable.

Q: 8. Is its speed 5400 rpm or 7200 ?

A: The WD 14TB My Book Desktop USB 3.0 External Hard Drive contains a consumer grade 5400 RPM drive.

Q: 9. Can you save to this drive at any time or does it only automatically save once a day to back up?

A: Content can be saved to the WD 6TB My Book Desktop USB 3.0 External Hard Drive at any time. You can set data back up frequency based on use case or need.

Q: 10. Is there a cooling fan to keep the drive from overheating?

A: When on but not being used, it makes a very faint sound like a small fan, though i really can't say. On the other hand, there are many opening all over the casing and the drive never gets even warm, let alone hot.