The 55mm Step-Up Ring for K2 Series from Freewell expands the compatibility range for your filters to fit smaller diameter camera lenses. The step-up ring is made of lightweight aluminum alloy that is anodized in a black finish.

Prevents Reflection or Leakage    Fit Smaller Diameter Camera Lenses.    Easy Mounting    Durable Aluminum Alloy Construction

Related Questions and Answers

Q: 1. Does this unit have a residual power draw whether anything is plugged into it or not?

A: If the Sevenstar TC-5000 Step Up/Step Down Transformer (5,000W) BH #SETC5000 i plugged in and turned on, then it will draw a small amount of power. If it is turned off, it does not draw power.

Q: 2. Is there a knurrend version of the ring for 49mm thread to 95mm OD?

A: No, there is no knurled version of the Simmod Signature Series 49 x 95mm Front Step-Up Pro SimRing.

Q: 3. does this unit make a lot of noise?

A: No it is not noisy.

Q: 4. Will I be able to run a 220-240v welder safely on this converter?

A: Hi there, I think it will, as long as it is in the Watt range. This one is for up to 2000W. I hope it helps!

Q: 5. What lens could I use this macro lens kit filter with? I have a Nikon 50mm 1.8, 85mm 1.8, and a Tampon 35mm 1.4 lens. Would this macro lens kit fit any of these lenses listed above?

A: All three of the mentioned lenses have a different filter size, so this Vivitar 55mm Close up Macro Lens Kit would not fit directly on them.

Q: 6. What is the type of transformer inside the unit?

A: For this the manufacture would not specify what is built in the Sevenstar TC-5000 Step Up/Step Down Transformer (5,000W) BH #SETC5000.

Q: 7. Will this system works in India?

A: Yes it will work in India. You may need an appropriate plug adapter.

Q: 8. I need to use a product like this to run my North American studio lights in documentary interview situations in Asia. Does the unit emit noise when operating?

A: I use it for my german kitchen machine in the USA and it does not make any noise and is really easy to handle!

Q: 9. While converting from 110 to 220, will this unit also step down from 60 hertz to 50 hertz?

A: AC cycles are NOT converted.

Q: 10. Is the 300 watt rating a peak rating or a continuous use? If it is a peak rating, is there a published continuous rating?

A: 300 Watts is the peak rating for the Sevenstar ST-300 Step Up/Step Down Transformer.