The #497 Step-Down Ring from Heliopan permits the use of 35.5mm filters on a 49mm threaded lens. It features a durable brass construction to prevent jamming and binding, and it has a matte black finish to reduce reflections.

Use 35.5mm Filters on 49mm Lens    Brass Construction    Matte Black Finish

Related Questions and Answers

Q: 1. Can you use this on a Canon 100mm macro lens and will this flash work as a slave with profoto lights?

A: A Canon 100mm lens can be placed through the center of this ring light and you can trigger it optically from a Profoto strobe.

Q: 2. Do they sell a sachtler adapter stud aktiv head to slider for 100mm or will the 75mm version do the same thing?

A: There will be a 100 mm version, it will be launched soon. The 75 mm does not work with aktiv10.

Q: 3. For the 10 and 8 model, beside 100mm vs 75mm bowl, the weight and height. Any difference between it? Like the drag at 7 is same?

A: The only difference between the Sachtler aktiv8 Sideload Fluid Head with SpeedLevel & 7-Step Drag for Sachtler Tripods (75mm) and the Sachtler aktiv10 Sideload Fluid Head with SpeedLevel & 7-Step Drag for Sachtler Tripods (100mm) is the additional weight and the 100mm bowl size.

Q: 4. does the unit have 1/4" thread for attaching to tripod? thanks

A: The Godox Witstro Ring Flash AR400 has a 3/8" mounting thread that can also accommodate a 1/4" screw using a 3/8 to 1/4" bushing.

Q: 5. How tall is this head from the bottom of the pan drag ring to the top most plate?

A: Unfortunately, this specification is not explicitly provided by manufacturer, and since we have not yet received the product (as of this writing), we are unable to physically verify for your inquiry.

Q: 6. I have a Flowtech 75 with Ace XL. Does the aktiv6 come with the hardware to mount it?

A: The Sachtler aktiv6 Sideload Fluid Head with SpeedLevel & 3-Step Drag for Sachtler Tripods will mount to the Sachtler flowtech 75 GS Carbon Fiber Tripod with the same hardware.

Q: 7. Can this be mounted to a Gitzo 75mm bowl adapter on a Gitzo 5 series tripod?

A: Yes, the Aktiv8 head should mount just fine with either the Gitzo 75mm bowl or with a Sachtler Adapter for 75mm aktiv Head to Slider: SAS20800003, to mount it directly to a 1/4" threaded screw base.

Q: 8. What are the differences between the Sachtler aktiv8T Touch & Go Fluid Head and the Sachtler aktiv10T Touch & Go Fluid Head?

A: The differentce between the Sachtler aktiv10T Touch & Go Fluid Head with SpeedLevel & 7-Step Drag (100mm) and the Sachtler aktiv8T Touch & Go Fluid Head with SpeedLevel & 7-Step Drag for Sachtler Tripods (75mm) is the head size, shown in the titles. The aktiv10T is 100mm and the aktiv8T is 75mm.

Q: 9. Hi, does tis have or need a spreader?

A: The Sachtler aktiv10T Touch & Go Fluid Head with SpeedLevel & 7-Step Drag (100mm) is just the head and does not come with a Tripod or Spreader. A complete kit with the head and spreader would be https://bhpho.to/3L1RpIR

Q: 10. Interested in using this for shooting interior architectural spaces that are dimly lit and on the larger size. Any approximation of how far it will cast light?

A: There is no equation to figure put how far and powerful the light from the Godox Witstro Ring Flash AR400 will go because it will depend on the exposure your camera is using and how far the light source is away from the subject.