They adjust a larger lens thread to accommodate a smaller filter.
Step up step down rings photography.
There are usually used to mount accessories.
A ring that is larger on the filter side than it is on the lens side is known as a step up ring while a ring that is larger on the lens side than it is on the filter side is known as a step down ring.
Step up step down rings don t work well with lens hoods so you ll likely have to do without the hood.
Things worth knowing about step up step down rings.
Step down rings do the exact opposite of a step up ring.
These adapters known as step up and step down rings allow filters designed to fit one size of lens to be adapted to lenses with larger or smaller filter thread sizes.
Step up rings are the most commonly used form of filter adapter ring and enable photographers to use filters designed for lenses with larger filter thread sizes on lenses that.
The starting point for configuring a step up ring system is to establish a pecking order from widest diameter thread size to the smallest.
When using step down rings and filters one can notice a lot of vignetting.
Stepping ring screws onto camera filter screws onto stepping ring.
Step down ring top and step up ring bottom.
Fotasy anodized black metal filter step down ring set stepping lens adapter rings 82 77mm 77 72mm 72 67mm 67 62mm 62 58mm 58 55mm 55 52mm 52 49mm step down rings by fotasy 9 49 9.
Neewer 18 pieces metal camera lens filter ring adapter kit 9 pieces step up ring setand 9 pieces step down ring set for canon nikon sony olympus dslr camera black 4 7 out of 5 stars 215 15 99 15.
Fotasy anodized black metal filter step down ring set stepping lens adapter rings 82 77mm 77 72mm 72 67mm 67 62mm 62 58mm 58 55mm 55 52mm 52 49mm step down rings 4 5 out of 5 stars 181 9 49.
As with regular filters don t over tighten them.
To make the most durable step up ring we simply took the craftsmanship build quality and durability of our professional filters adapted it to the step up ring.
We manufacture this step up ring with brass and then apply a matte black electroplated finish which withstands corrosion and other abrasive elements often enc.
Basically the corners are getting less light because of the tunnel that is created.