NiSi Close Up Lens Kit 49mm (High Magnification)

NiSi Close Up Lens Kit 49mm – High Magnification with +9 Diopter

The NiSi Close Up Lens Kit 49mm delivers strong close-focusing capability by adding a +9 diopter close-up lens in a compact kit. You achieve a substantially shorter minimal focal distance and higher magnification, depending on the focal length of the lens you attach. The kit works across many lenses when you use the appropriate adapter rings.

Construction and optical quality

The close-up lens is built from three optical corrective glass elements. It uses an apochromatic optical design and multi-nano coatings. As a result, the lens aims to provide advanced resolution and natural color rendition, while minimizing purple and green fringing both in the focused area and in the bokeh.

Magnification and how it changes with sensor format

The diopter value of this close-up lens is +9. On a full-frame camera, the lens achieves a 1:1 magnification at a focal length of 110mm. For smaller sensor formats, the effective magnification increases: the kit yields approximately 1.5× magnification on APS-C cameras and about 2× magnification on Four Thirds (4/3) cameras. In practical terms, longer focal lengths produce higher magnification when the close-up lens is used.

Lens compatibility and vignetting tests

The NiSi 49mm close-up lens attaches to front filter threads using adapter rings. The lens is suitable for lenses with filter threads from 40.5mm up to 67mm (adapter rings required for different thread sizes).

1. Suitable for lenses with a 40.5–67mm filter thread. (Adapter rings required)
2. No vignetting at focal length 25mm on APS-C cameras. (Tested with Canon R7 + RF‑S18‑45mm F4.5‑6.3 IS STM @ F5)
3. No vignetting at focal length 70mm on APS-C cameras. (Tested with Sony a6600 + Tamron 28‑200mm F2.8~5.6 @ F4)
4. No vignetting at focal length 180mm on Full Frame cameras. (Tested with Sony A7R3 + Tamron 28‑200mm)
5. Compatible with the following lenses using an adapter to achieve 2× magnification:
   Canon 100mm macro lens, Nikon 105mm macro lens, Sony 90mm macro lens.

Practical tips for shooting

Use the following tips to get the best results from the NiSi close-up lens.

1. The best working distance is between 2–14 cm. Move the camera to find the correct focus point within that range.
2. We recommend using a tripod and NiSi’s macro focusing rail to achieve precise and repeatable focus, especially for close-up or macro subjects.
3. The close-up lens does not affect exposure settings. For handheld shooting, consider a smaller aperture combined with an external flash unit or a higher ISO setting to maintain adequate shutter speed and depth of field.
4. When you use the close-up lens on longer focal length lenses, the magnification increases. You can achieve pleasing bokeh if you pair the close-up lens with a wider aperture on the attached lens.
5. The best focal length and exact magnification depend on the specific design of your lens. Different lenses may produce different results, so test and adjust accordingly.
6. If you plan to create a focus stack series, we recommend using the NiSi macro focusing rail for consistent step increments and accurate final stacking results.

Packaging includes

• NiSi Close Up Lens 49mm
• NiSi Adapterring 67‑49mm (for Canon 100mm Macro Lens)
• NiSi Adapterring 62‑49mm (for Sony 90mm Macro Lens and Nikon 105mm Macro Lens)
• Protective case

Specifications

FAQ

Question: Which lenses can I use with the NiSi 49mm close-up lens?
Answer: The lens fits lenses with 40.5–67mm front filter threads when you use the appropriate adapter rings included or purchased separately. Additionally, using an adapter you can pair it with Canon 100mm, Nikon 105mm, and Sony 90mm macro lenses to achieve about 2× magnification.

Question: How does sensor size affect magnification?
Answer: Sensor size changes the effective magnification: the kit gives 1:1 magnification at 110mm on full frame, while APS-C sensors render roughly 1.5× and Four Thirds sensors render roughly 2×, because smaller sensors crop the image more tightly.

Question: Do I need a tripod or special support?
Answer: Yes. For best results, use a tripod and NiSi’s macro focusing rail. These tools help you achieve precise focus at close working distances and are especially helpful for focus stacking or very small subjects.

Question: Will the close-up lens change my exposure?
Answer: The close-up lens itself does not change exposure settings. However, shooting at very close distances often requires more depth of field, so you may choose a smaller aperture and compensate with flash or a higher ISO to maintain correct exposure.

Question: Can I expect vignetting with wide-angle lenses?
Answer: NiSi has tested typical setups and found no vignetting in the listed test scenarios (25mm and 70mm on APS-C, 180mm on full frame). Still, vignetting can vary with specific lens models and adapter arrangements, so testing your particular setup is recommended.

Question: Is the optical quality suitable for critical macro work?
Answer: The close-up lens uses apochromatic design and multi-nano coatings to reduce fringing and preserve color and resolution. For critical macro work, combine the lens with a tripod and macro rail, and consider focus stacking for maximum depth of field and detail.