Hasselblad B50 to 63 Filter Adapter Ring: Fit and Hood Guide

Quick answer

The Hasselblad B50 to 63 adapter ring lets you mount 63mm filters and the included Ednalite 8-S hood on lenses with a B50 bayonet mount. It is a practical way to use standard 63mm accessories on Hasselblad B50 lenses, but check your lens mount and filter size before buying.

What B50 and 63 mean in practice

B50 refers to a 50mm bayonet mount found on many Hasselblad lenses. It is not a screw thread, so standard filters will not screw directly onto these lenses. The adapter ring converts that bayonet to a 63mm screw thread, which accepts 63mm filters and other 63mm accessories.

The 63mm side is a standard metric thread. That means you can use common 63mm filters, step-up rings, or hoods from other brands, as long as they are 63mm. The adapter itself is the bridge between the Hasselblad bayonet and the wider world of 63mm accessories.

Which lenses the adapter fits

The adapter is designed for Hasselblad lenses with a B50 mount. Many older and some current Hasselblad medium-format lenses use this mount, but not all. If your lens has a different bayonet size, such as B60 or B70, this adapter will not fit.

To confirm compatibility, look at the front of your lens. If you see a bayonet with an outer diameter of about 50mm and no filter thread, it is likely B50. If you see a thread, measure its diameter. If it is 63mm, you may not need this adapter at all.

The included Ednalite 8-S hood: useful but not universal

The product includes an Ednalite 8-S hood. This is a lens hood that screws onto the 63mm thread of the adapter. A hood helps reduce flare and protects the front element, but it can also block the viewfinder or cast a shadow if it is too deep for your lens.

The 8-S hood is a standard screw-in type. It may not be ideal for very wide-angle lenses, where a deep hood can cause vignetting. For normal and telephoto lenses, it is generally a good match. If you plan to use the adapter with a wide-angle lens, test the hood first or use a shorter hood.

Condition and what you get

This used adapter is listed in excellent condition with minor paint wear and a few scratches. Those cosmetic issues do not affect function. The listing includes the adapter ring and the Ednalite 8-S hood. No filters are included, so you will need to supply your own 63mm filters.

Because it is a used item, check the photos for the actual condition. The bayonet and thread should be clean and undamaged. If the thread is cross-threaded or the bayonet is bent, filters may not seat properly. Ask the seller if you are unsure.

Hasselblad B50 adapter FAQ

Will this adapter fit my Hasselblad lens?

It fits lenses with a B50 bayonet mount. Check the front of your lens: if it has a bayonet about 50mm wide and no filter thread, it is likely B50. If it has a different mount or a built-in thread, this adapter is not for you. Measure your lens mount before ordering.

What size filters can I use with it?

The adapter provides a 63mm screw thread, so you can use any 63mm filters. You can also use step-up rings to go to larger sizes, but step-down rings may cause vignetting. 63mm is the native size; step-up rings add flexibility.

Does the included hood cause vignetting?

The Ednalite 8-S hood is a standard screw-in hood. It may vignette on wide-angle lenses. Test it at your widest aperture and focal length before relying on it for critical work. Use a shorter hood or remove it for wide-angle shots.

Can I use the adapter with other accessories?

Yes, any 63mm accessory will fit, such as filters, close-up lenses, or other hoods. Just ensure the accessory is not too heavy for the bayonet mount. Keep accessories lightweight to avoid stress on the bayonet.

Is this adapter worth it for a used kit?

If you already own 63mm filters or want to use standard filters on B50 lenses, it is a cost-effective solution. If you rarely use filters, you may not need it. Consider how often you use filters before buying.

Product facts

• Used Hasselblad B50 to 63 Filter Adapter Ring with Hood (CM): Excellent condition with minor paint wear and a few scratches. Cosmetic flaws are cosmetic; the adapter should still mount and thread correctly, but inspect the photos for thread damage.

  

• Used Hasselblad B50 to 63 Filter Adapter Ring with Hood (CM): Includes the adapter ring and an Ednalite 8-S hood. You get a hood ready to use, but you still need to buy 63mm filters separately.