The Wine Country Camera Blackstone Soft-Edge IRND 0.6 Filterfrom Wine Country Camera Blackstone Soft-Edge IRND 0.6 Filteris a rectangular filter that helps to darken specific areas of an image, such as bright skies, while allowing for a normal, unaffected exposure in the other regions of the image. The filter is densest at the edge and tapers to clear by the middle, with a soft-edged line of transition between the dense and clear areas. A neutral density filter with a soft-edged line of transition is particularly useful for images that do not have a strongly defined transition between the sky and the foreground. Neutral density filters do not affect the coloration of the image, and this filter provides up to a 2-stop reduction in light from entering the lens.

The design of this filter has been optimized for use with digital sensors and to promote nearly flat attenuation of visible and infrared light. Due to imaging sensors' greater susceptibility to infrared light compared to traditional film, color casts can occur when photographing darker subjects that require increased exposure times. To provide neutrality across the visible and infrared spectrums in order to eliminate color casts and ensure cleaner, truer blacks, one layer of Blackstone ND Coating is applied to each of this filter's surfaces. The Blackstone ND Coating is also designed to help minimize any effect on a digital camera's resolution when using this filter.

This 150 x 170mm Blackstone Soft-Edge Graduated IRND 0.6 Filter is constructed from Schott Ultra-White Glass for clarity as well as color fidelity and measures 2mm thick.

The 150 x 170mm Blackstone Soft-Edge Graduated IRND 0.6 Filter is pre-installed within a Wine Country Camera 150 x 170mm Filter Vault, which is designed to encase the edges of a 150 x 170mm, 2mm thick filter for use within a separately available Wine Country Camera 150mm Filter Holder. By encasing the sides of an installed filter, this filter vault helps to eliminate stray light, which could have unwanted effects on exposure. Additionally, the Wine Country Camera 150 x 170mm Filter Vault reinforces an installed filter's rigidity while preventing its sides from having to come into direct contact with a filter holder's slots. This protects those side surfaces and promotes sharp results by ensuring that the filter remains flat.

Installation of a compatible filter is accomplished by first turning the Wine Country Camera 150 x 170mm Filter Vault's brass Wine Coin lock into the open position. Located along the front of the filter vault's inner and outer top edges, the Wine Coin is a flat, disk cam lock that features a straight edge on one side and a rounded edge at the other. When the lock's straight edge is aligned with the filter vault's inner edge, a 150 x 170mm, 2mm thick filter can be set within the front of the filter vault. The Wine Coin can then be turned so that its rounded edge obstructs the installed filter, securing it within the filter vault.

A separately available Wine Country Camera 150mm Filter Holder includes an outer slot that can accommodate this 150 x 170mm Filter Vault. The filter holder also features a quick release button that is dedicated to the slot. When pressed, it allows a Wine Country Camera 150 x 170mm Filter Vault within a Wine Country Camera 150mm Filter Holder's outer slot to be adjusted upward or downward relative to the subject. When used with a Wine Country Camera 150mm Filter Holder's outer slot, an integrated safety-catch system prevents this 150 x 170mm Filter Vault from accidentally sliding out of the filter holder.

4x Filter Factor, 2-Stop    Reduce Exposure in Selective Areas    Soft-Edged Line of Transition    Reduce Shutter Speed, Widen Aperture    Neutral Results, Visible & IR Spectrums    Schott Ultra-White Glass Construction    Wine Country Camera Filter Vault    For Wine Country Camera 150mm Holder    Protects Filter Edges    Keeps Filter Surfaces Flat

150 x 170mm graduated neutral density filter darkens bright areas of an image, such as skies, while leaving the remainder of the frame unaffected

4x filter factor provides up to a 2-stop reduction of light in selective areas

Soft-edged line of transition between the dense and clear areas

Useful for images that do not have a strongly defined transition between the sky and the foreground

Filter does not affect coloration of the image and is ideal for use with other filters

Each surface includes one layer of Blackstone ND Coating that attenuates infrared light as well as visible wavelengths to maintain color neutrality and suppress color casts due to increased exposure times

Blackstone ND Coating is designed to help minimize the filter's effect on a digital camera's resolution

Constructed from Schott Ultra-White Glass for clarity and color fidelity

Related Questions and Answers

Q: 1. How is the iris controlled on a Nikon F-mount camera? Is there a 'G' style control lever? Or is it purely electronically controlled?

A: The aperture is electronically controlled.

Q: 2. (Please ignore or delete my previous question about the difference between the FireFly and Blackstone iterations of this lens -- it is answered in the Overview -Duh! - My bad.) Are the FireFly and Blackstone editions identical in terms of image quality? Thank you!

A: yes Mark the firefly and the blackstone are identical in image quality. The only difference is between them is that the blackstone is fully weather sealed.

Q: 3. does this lens have a chip for canon?

A: Yes it does, as well as electronic aperture control.

Q: 4. Is there an 150mm filter holder for this lens

A: Not that I know of that we sell, there may be some coming soon from Nisi, Lee, Fotodiox, etc..

Q: 5. Anyone using this with a c100 mkii? If so, thoughts?

A: The IRIX 11mm f/4 Blackstone Lens for Canon EF is an excellent choice for someone interested in a super wide angle rectilinear lens for the C100 Mk II Digital Cinema Camera. The rectilinear design limits image distortion and the lens uses a positive lock mechanism that will make it easier to pull focus consistently and accurately.

Q: 6. Since there is no Sony FE version, how will this work with a Canon EF to Sony E Metabones adapter?

A: Works well with the Metabones Canon EF/EF-S Lens to Sony E Mount T Smart Adapter (Fifth Generation).

Q: 7. Will this cover a RED Dragon 6k sensor?

A: Yes, this lens is designed to cover 36 mm 24 mm sized sensors.

Q: 8. Specific to the Nikon F mount version ... does this lens have open-aperture metering, or stop-down metering?

A: the lens is open aperture metering as stop down I believe aperture is not adjustable on this lens, I only had one for a short time before I bought the Zeiss 15mm.

Q: 9. Will this fit a canon Reble t8i ?

A: Yes, this lens is compatible with the T8i but this is a manual focus lens only, no autofocus.

Q: 10. Does it block UV? Is it okay for at the sun when checking the movement of clouds?

A: Question : Does It Block UV? Answer : No, It Doesn't. But The VVF Allows The User To Add Additional Neutral Density Filters (Available Seperately) To Increase The Stop Range, UV Filters And Polarizers, Or Even Special FX And Diffusion Filters For Pre-Visualization Of A Scene Without The Need To Reposition The Camera. Anyway You Could Purchase Tiffen 49mm Digital Neutral Density Filter Kit Together With The Tiffen Variable Viewing Filter.Question : Is It Okay For At The Sun When Checking The Movement Of Clouds?Answer : Not Yet. It Is Not Okay For At The Sun When Checking The Movement Of Clouds Without Additional ND Or UV Filters. But It Is A Great Tool For Gaffers And Directors Of Photography To Spot Strong Lights Or Keep Track Of The Sun Moving In And Out Of cloud Cover With Additional ND Or UV Filters. For Identifying The Position Of The Sun When It Is Behind Clouds To Determine Where Shadows Will Fall. Warning : Only Use To Find The Sun Behind Clouds.My Advice : You Could Purchase Tiffen 49mm Digital Neutral Density Filter Kit Together With The Tiffen Variable Viewing Filter.Best Regards,Toke.Thailand.