67mm Empty Magnetic Base Ring (Works ONLY with K&F Concept Magnetic Filters / Quick Swap System)

SKU: KF05.288

Q
I have the set and with 16 mm there is strong vignetting. According to the manufacturer, this should not be the case. wrong product information
Answer Question
A
Use the set with 21mm = idem 17mm, medium format, Hasselblad. Without problems. Quality comparable to far more expensive products. Attention! Do not stack filters with such focal lengths