The Heliopan Bay 2 Close-Up +3 Lens for Photographyis a convex diopter designed to decrease the minimum focus distance of any lens in order to produce a shorter working distance for close-up photography. Available in varying strengths, close-up lenses also feature Bay 2 front filter threads for combining two or more filters to fine-tune results.

The front and rear surfaces of the filter both feature a single anti-reflection coating. Each coating helps to increase light transmission by reducing reflections, scattered light, and ghosting. Additionally, they offer protection to the filter substrate while helping to keep the glass clean for longer than uncoated glass.

This Heliopan filter is constructed from Schott glass for increased optical clarity and color fidelity. It features a brass filter ring for durability as well as jamming prevention.

Decreases Minimum Focus Distance    Convex Lens, +3 Diopter    Provides Shorter Working Distance    Bay 2mm Front Mount    Front and Rear Coating    Schott Glass Construction    Brass Filter Ring

Convex lens design and +3 dioptric strength lessens the minimum focusing distance of any lens for close-up shooting.

Single coatings on both the front and rear offer protection to the glass and help to improve light transmission and image quality.

Constructed from Schott glass for optical clarity.

Brass filter ring helps to prevent jamming and provides additional strength.

Dual mounts with Bay 2 front filter mount permits combining with other filters.

Related Questions and Answers

Q: 1. Is this lens single or dual element?

A: The Heliopan 82mm Close-Up +1 Lens has a single-element Convex design.

Q: 2. what does bay 6 or 60 mean?

A: Bay is short for bayonet. Heliopan makes these bay filters specifically for Hasselblad and Rollei lenses.

Q: 3. If I am using a TLR camera, do I need to buy two of these? One of the taking lens and one for the viewing lens? Or is it a set?

A: Two of the Heliopan 72mm Close-Up +3 Lens should be used on both lenses on the TLR camera. Note, that it has not been tested and adding a filter to each lens might not fit well because of the thickness of the filter frame.

Q: 4. Does this come with a viewing filter for the TLR?

A: This is only one filter.

Q: 5. Would this work on Sigma EX Would this work with Sigma Macro 180mm F/3.5 APO HSM IF Lens For Canon that takes 72mm filters?

A: The Sigma AML72-01 Close-Up Lens can be used on the Sigma 180mm f/3.5 EX DG APO Macro IF HSM Autofocus Lens.

Q: 6. What is magnification for this lens? I'm looking for x1.5 up to x3 (similar to Nikon 5T and 6T). Thank you

A: According to the forum for this product on the Nikon USA website, The magnification factor of the D-SLR Close Up Lens (52mm) is 0.44x. (Answered by a Nikon USA representative.)

Q: 7. ARRI Diopter Frame 138mm for Matte Box BH # ARK2.0013740 • MFR # K2.0013740 Can it be used with this product?

A: 138mm filters and 138mm filter holders all confirm to industry standards and thus are all compatible. To answer your question, yes, this filter will work in that frame.

Q: 8. Will buying two of these work for my Yashica Mat 124G? I want to be sure I get proper parallax correction.

A: You will have issues using this with that type of camera. It will be almost impossible to focus and to line up the image in the frame.

Q: 9. does this filter fit tamron 60mm lens?

A: No, the Tamron SP 60mm f/2 Di II 1:1 Macro Lens uses a 55mm filter. You can use the Heliopan 55mm Close-Up +3 Lens.

Q: 10. Can I use it on sigma 18-250?

A: Yes, this will work on the Sigma 18-250 mm lens. The threads are 72 mm. I have the 18-250, and use it all the time.