But that would also have the only negative criterion was. The filter is delivered in a solid, folding plastic box, in a durable foam insert is integrated with a precisely fitting cutout for the filter.
The B + W Neutral Density Filter 1000x F PRO 110 has a "simple" on compensation, but so many affordable
"Multicoating no-name filter" makes you look old. There are the 1000x-gray filter of B + W MRC in a version that is again, however, more expensive by half.
As a multi-coating imho brings no visible or identifiable benefit in a neutral density filter, I decided for the cheaper F-Pro version.
The filter itself has a high production quality and provides a solid construction method. First test shots show very satisfactory results. Almost always a solid tripod is mandatory that when shooting with this filter, is close.
It is also recommended in bright light without superiors filter "to make sharp" to disable the AF then and only then attach the filter, as in many cases of AF no longer seems to work (because too dark) or even the view through the Viewfinder not disclose much if the filter is already installed.
Who wants experementieren properly will need a cable release to allow exposure times beyond the 30 seconds. Test shots with my Nikon D300 and Sigma AF 10-20 / 4.0-5.6 bring a seemingly deserted city park in sunshine and a traffic-free street shows (apart from parked cars).
The photographs are characterized by a clear warm tone. This results from the fact that the red component of light from 660 nm reached a higher transmission value. The longer the exposure time (in a gray filter with elongation factor x1000 ...), the higher - in relation to the other colors - the red portion of the light that reaches the film / chip.
This "hot Stitch / reddish tint" but is not particularly disturbing, yet unkorregierbar. A simple change of Farbtempereatur by example. Image editing software is sufficient to eliminate him.
However arise in my camera (probably due to the heating of the sensor due to the long exposure) after a certain number of shots at shutter speeds two to three minutes seems a pixel errors that are discoverable but only at the explicit search.
So I have two places at maximum up view "cruciform" (5 pixels) misrepresentations, but no hot pixels, it looks more like a faulty color representation. It might here be the pixels that have been adjusted in the wake of a Sensorremappings. Corresponding tests I will perform.
However, this does not constitute a product-specific deficiency but a recording-related consequence that does not really stand for "normal" viewing the photos.
All in all an absolute top product that opens up interesting and unusual ways of recording.
A small tip: Who owns several lenses with different filter diameters, can use the 77mm filter also on the lenses with smaller diameters and thus avoids a possible second acquisition by reduction ring.
Eränzend I would like to mention: Thumbs up for the D300! These have already been described by me "cruciform misrepresentations" that I could make in two places recording, exclusively on JPEG seen. The corresponding RAW file has this faulty images do not. (I shoot mostly in RAW + JPEG setting FINE). I can not explain, but I suspect that what's gone wrong as a result of disproportionately long exposure as the camera's internal convert / compress.
Absolutely thrilled I am but from the fact that even at the 3-minute exposure in RAW recording not a single hot pixels can be recognized.
Possibly the result "false picture" also from the "activated noise reduction" would be an additional possible cause.
Filter itself is certainly top and taking pictures with it a lot of fun.
