GRADUATED ND FILTER 77MM - FILTER 77MM
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Graduated Nd Filter 77mm
- In photography and optics, a neutral density filter or ND filter can be a colorless (clear) or grey filter. An ideal neutral density filter reduces and/or modifies intensity of all wavelengths or colors of light equally, giving no changes in hue of color rendition.
- (ND Filters) Neutral Density filters can be attached to the lens of a camera to assist in preventing overexposure of an image. Prosumer camcorders have ND filters built in.
- A filter that attenuates light evenly over the visible light spectrum. It reduces the light entering a lens, thus forcing the iris to open to its maximum.
- Successfully complete an academic degree, course of training, or high school
- calibrated: marked with or divided into degrees; "a calibrated thermometer"
- (graduate) alumnus: a person who has received a degree from a school (high school or college or university)
- Confer a degree or other academic qualification on
- Receive an academic degree from
- gradational: taking place by degrees
Tiffen 77HTCGND6 77MM Digital HT Grad ND 0.6 Titanium Filter
This filter is great for evening out difficult lighting situations for more uniform exposure. Being a High-Trans Titanium Filter This filter has very high transmissive properties utilizing multicoatings and a Titanium oxide component. These filters are mounted in a light weight metal ring with a matte black anti reflective inner ring and a Titanium finnish outer ring to identify the titanium oxide componenet in the filter. The new coatings for this filter increases hardness and reduces the suceptibility to smearing.
"Conkin" type filter holder, + Adaptor rings
The square box is a graduated ND filter - a "secret weapon" of landscape shooters, especially in the pre-Digital and pre-HDR days. (Hell, I'll still use it now, as HDR images that I've been able to make suffers from excessive noise and IQ degradation due to the need to stack 3 different exposures. Clouds and tree leaves tends to move...)
The filter holder isn't the best... but it does the job fine. Surface finish is quite rough - you can see the tool marks on the injection molding. But, hey, it holds a piece of glass that does not need to be optically aligned very precisely...
The 72 and 77mm adaptor rings mount the filter holder to the lens. I can free-rotate the holder and slide the graduated ND filter to change the positioning of the gradient.
The 3rd ring is a 72-77mm step-up converter. My EF-S10-22mm is 77mm, while my EF24-135 walk-around is a 72mm. In the future I will be upgrading to L-glass (all L-Zooms are 77mm) and I can eliminate the hassle and expense of stocking multiple filter diameters...
For a year now I have been trying to get some Lee Filters graduated neutral density filters for my 24-70 lens (which would also fit the 70-200). Lee Filters has a great reputation, but their business model just really sucks... or at least the production capacity part of their model. They are darn near impossible to find to buy.
It has taken me a year to find stock. I got the holder maybe six months ago. Then a month ago I was able to get a couple filters. And today the 77mm adapter ring finally arrived. Woohoooo--now I've got a functioning set!!!!
Now, if the *&%*^# SW-150 for the Nikon 14-24/2.8 would just come into stock somewhere. Arg.
And I need to get a "big stopper" (10-stop ND), but I really begrudge the cost of it.
graduated nd filter 77mm
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