The FotodioX 130x173mm Soft-Edge Graduated Blue Sky Filteris a filter designed for use with the Cokin X-Pro series or FotodioX Pro 130mm filter holder systems. It can be used to add blue to a hazy or colorless sky. When used instead of a polarizer filter to enhance the sky within an image, the desired effect can be applied only to the sky, without any unwanted polarization or additional contrast to any part 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. This filter has up to a 0.6 density and reduces light from entering a lens by up to two stops.

This filter is made of durable, optical resin (CR39) and measures 2.9mm thick. A plastic sleeve is also included with the filter.

For FotodioX Pro 130mm Filter Holder    For Cokin X-Pro Series Filter Holder    Enhances Gray or Colorless Sky    Soft-Edged Line of Transition    Optical Resin CR39 Filter    Plastic Sleeve

• Compatible with Cokin X-Pro series, or FotodioX Pro 130mm filter holders
• Adds blue to a hazy or colorless sky
• Soft-edged line of transition between the dense and clear areas
• 0.6 density and 4x filter factor provides up to a two-stop reduction of light in selective areas
• Constructed from optical resin (CR39) for clarity and durability
• Plastic filter sleeve included for storage and transport

Related Questions and Answers

Q: 1. Can the C-308AS be run off AC power only after the batteries have run out of power?

A: Yes, you can run the lights on AC or on Battery. So, if the batteries run out you can switch to the included AC adapter.

Q: 2. What's the weight of the light with batteries when you're holding it? Thanks!

A: The weight of the FotodioX Pro FlapJack LED Wand C-308AS Bi-Color Edge Light is 6.94 lbs, while the weight of the NP-F740 batteries together would be approximately 0.9 lbs. As such, the weight of the FotodioX Pro FlapJack LED Wand with the batteries would be approximately 7.94 lbs.

Q: 3. How many LEDs is in this?

A: Fotodiox does not list the number of leds but please note this light uses leds that are reflective in that they come in from the side.They will have less than the front facing type.

Q: 4. Regarding the output of the light, how bright is it at its highest setting? For example, it is comparable to a 500w light, 650w, 1000w, etc. in terms of how bright it can get

A: Wow, one guy says 65 watt equivalent, another guy says 650 watt equivalent. What a difference! Here is the definitive answer: An old-school 750 watt Lowel Tota tungsten light puts out 2,700 lux at 3.3'. This light puts out between 778 and 865 lux at 3.3' (depending on your color; 5600K mode is brighter than 3200K mode). That's ~30% as much light as the Lowel Tota or the equivalent of a 220-240 watt tungsten light.

Q: 5. How long does the battery charge last when light is on full power?

A: At 100% power the light can run for approximately 2 hours and 20 minutes. At 50% power, its about six hours. This applies to the included NP-740 style batteries

Q: 6. would this 18" Honeycomb grid snap onto this light you think? BH #GERSF18GRID

A: Grids are not universal.

Q: 7. Can I use it by v-mount battery?

A: Yes, it can be powered by V Mount or battery packs that come with the purchase.

Q: 8. Does this come with a mains power adapter?

A: Yes, It has mains lead/adapter in the box.

Q: 9. What is the Illuminance in lux? Many of these lights don't provide this information.

A: The intensity at 1m is: 3200k - 195lx 5600k - 230lx

Q: 10. would this 18" honeycomb grid work for this light? https://www.bhphotovideo.com/c/product/1366478-REG/fotodiox_led_fctrj18_grid_honeycomb_grid_for_factor.html/specs

A: Grids are not universal and need to be from the same manufacturer for the same model.