The Tiffen 138mm CC20M Magenta Filter is a color compensating (or color correction) filter for use when making color balance adjustments. It can be used to alter the color balance of a scene by placing in front of a light source or the lens of your camera. It can also be used to apply color corrections when used in the darkroom with an enlarger or to help pre-visualize color adjustments when viewing prints.

Magenta is the opposite of green and can be used to reduce green tones or casts within a scene or print. This magenta CC20 is more dense than a CC10 filter and less dense than a CC30 filter, and requires a 0.3 stop compensation for normal exposure results.

Tiffen filters are made using ColorCore technology; a process that involves laminating the filter substrate between 2 pieces of optical glass, grinding flat to a tolerance of 1/10,000th of an inch, then mounting to precision metal rings.

CC20M Color Compensating Filter    1.2x Filter Factor, +0.3    Achieve Proper Color Balance    Alter Color Balance    Useful for Printing and Viewing    ColorCore Technology    138mm Front Filter Threads    Plastic Case

Magenta color compensating filter for use when making color balance adjustments.

Magenta is the opposite of green and is added to reduce green tones or color casts within a scene or print.

This filter has a nominal peak density of 0.20, and a 1.2x filter factor, requiring a 0.3 stop compensation.

Plastic filter case for storage and transport.

Related Questions and Answers

Q: 1. is this lens compatible with a Canon EOS rebel T1i ?

A: The Tamron 150-600mm lens for Canon is fully compatible with the T1i, yes.

Q: 2. What is the Celestron nexstar evolution WiFi band? (2.4G? 5G? other?). Thanks.

A: It is 2.4ghz.

Q: 3. Has anyone used this on a d810? If so can you share your experience about it and if possible can you also share some images taken with this lens and a 810 body?

A: It works well with the d810... it is a great lens and even better when you consider the price. It does not work with any of the Nikon teleconverters but at 600mm it already is limited to f6.3 For examples of quality of lens see look-up FLICKR 150-600mm TAMRON group

Q: 4. Can this scope with EdgeHD optics and Evolution mount be purchased without StarSense?

A: Yes it can. Here is a direct link: https://bhpho.to/2iAedkk

Q: 5. Compatible with Nikon 40?

A: Yes, the Tamron SP 150-600mm f/5-6.3 Di VC USD Lens for Nikon is fully compatible for use with the Nikon D40 DSLR Camera.

Q: 6. I'm sure after reading that this lens is compatible with all canon cameras mentioned. Is this lens compatible with rebel T6 1300D (eos)?

A: I'm not sure about the T6, but I have a T3i and it works wonderfully with it.

Q: 7. Will the lens work with Tameron -F A teleconverter 2X N-AF. BBAR NO 7

A: I have not used it with teleconverter. I suppose it could be used although it may be somewhat uncomfortable and somewhat difficult. It is a heavy lens and its 600mm is very likely to vibrate when taking the picture. would have to see what kind of teleconverter but I guess there will be no problems

Q: 8. I bought a Canon SX50HS soon after it came out and loved the superzoom. however, quality was lacking when my better shots were printed 11 X 17 so I have upgraded to a larger sensor Nikon D5500 but need more reach for wildlife shots. I see that this and the yet to be released SIGMA 150 - 600 are both made mainly for full frame cameras and have heard reviewers saying that APS-C frame camera users may experience slow focus with moving subjects and also less quality in their pictures vs full frame camera users so I'm hesitant and could use advise as I'm new to the DSLR. I don't see any other options out there, will this lens give great, good, average or poor results when used for birds in flight on a D5500?

A: Mine works great with my full frame camera or the aps-c. The details with the full frame croping are amazing but with the other great as well

Q: 9. What is the Celestron nexstar evolution 9.25 WiFi band? (2.4G? 5G? other?). Thanks.

A: The Celestron NexStar Evolution 8 203mm f/10 Schmidt-Cassegrain GoTo Telescope uses 2.4Ghz wifi.

Q: 10. How good is this lens for action?

A: Depends on the type of action. I have found the VC (Vibration Control) and focus to be extremely quick and accurate. The captures are sharp for hand held as long as you use a good tight shooting position. For sports action I would use a monopod. But I am very happy with my lens.