- Boxed-product Weight: 100 g
- Item model number: DHG77ND100K
- ASIN: B0068V25JE
- Date first available at Amazon.co.uk: 27 Nov. 2014
- Average Customer Review: 5.0 out of 5 stars See all reviews (2 customer reviews)
- Amazon Bestsellers Rank:
Marumi 77 mm DHG ND100 Filter
|Price:||£76.51 FREE UK delivery.|
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- Special Filter for Solar Eclipse Shooting
- Available for 58mm and 77mm filter sizes
- Specially developed ultra-low reflection coating to minimize internal reflection off the cameras built-in CCD and CMOS Sensors.
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Size: Marumi DHG ND100,000 Filter 77mm
Special Filter for Solar Eclipse Shooting
The Marumi DHG ND-100000 is a neutral density filter which reduces light values to 1/100,000 and is specifically designed for taking picture of solar eclipses etc.
Available for 58mm and 77mm filter sizes: Users of 58mm or 77mm lens size can attach the filter directly. Users of other lens sizes will need to use a stepping ring. Shooting using a tripod is recommended.
Marumi DHG (Digital High Grade filters) have been specially designed with Digital Photography in mind. Each filter uses a specially developed ultra-low reflection coating to minimize internal reflection off the cameras built-in CCD and CMOS Sensors. Other anti-reflect features include a special slim frame with satin smooth finish and a black ink process on the glass edge to eliminate flare.
• Do not look directly or indirectly at the sun without appropriate eye protection or for extended periods, even during a solar eclipse.
• Install DHG ND-100000 in front of the camera lens or telescope lens - do not use the optical viewfinder.
• DHG ND-100000 is for use only with cameras and telescopes -not suitable as eye protection.
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Top Customer Reviews
Most Helpful Customer Reviews on Amazon.com (beta)
This is a multi-coated (on both sides) filter and the substrate is not reflective like other metallic solar filter. This helps in reducing internal reflection from the CCD/CMOS sensor. The linearity of the resulting image seems to be very good too.
WARNING: this is a wide pass filter and so do NOT use this filter to look at the sun directly for any extended duration. The IR and UV will damage your eyes as this filter does NOT filter those. Best way to compose your photo is to use LiveView. If you have to use the viewfinder, do it quickly, and if you are wearing corrective glasses, although the UV will mostly be cut by that, you still need to worry about IR damage for which you won't feel pain while your retina is being damaged after an extended duration.
Please find our comments in reply to your questions as follows:
1.Marumi DHG ND100000 filter has been developed for the purpose of photographing solar eclipse by a still camera.
2.It conforms with the camera filter safety guideline published by astronomic education organization in Japan which says
that for the safety of sun observation the sun light transmission rate should be less than 0.003% at visible light area
(380nm - 780nm) and less than 0.5% at near infra-red area (780nm - 1,400nm). Even so, the guideline warns that
it does not guaranty the safety if within guideline as the figures are logically calculated based on long time sun observation
without taking a risk of damaging the human eyes.
As you can see in the attached transmission rate graph of our ND100000, it has the characteristic far above the guideline.
(1)Live view shooting in normal condition should be no problem. However, there is no guaranty of safety for long time shooting.
(2)The sun light coming through this filter should be safe enough for human eyes and camera sensors but it may depend on
individual conditions and please avoid long-time continuous use.
(3)Does this filter reduce IR emotions equally to the visible light reduction?
No. As you can see in the attached transmission rate graph, the light reduction rate is even up to 800nm area but beyond 800nm,
the light reduction is not the same as for visible light.
The graph (see the photos) that was attached also shows what is stated above.
My conclusion is that under short periods of time live-view mode is perfectly safe to use. Longer durations of 5min or more should be avoided as the sensor is going to get warmed by the IR heat (particularly if amplified by a long lens which you will be using) and by minimizing the length of time it is going to avoid any harm to your equipment. Also to add: all Modern DLSR cameras unless specifically built for IR photography (or possibly a very old model) have a built in IR filter mounted to the sensor to assist with cutting IR light, and reducing heat for sharper images (more heat more noise). This built in filter also blocks a portion of IR light as well.
I found that with my Canon 50D in live-view mode I only needing about a minute to view, focus, compose, take the shot and enjoy the live action of the sun. Then taking I minute or two to observe my shot gave my sensor ample time to cool. On my Canon 5D Mark II I will keep my videos to under a minute as well just to be safe.
This product gets my highest regards AAA+