Entaniya Fisheye HAL 250 Rear Group Kit 3.0

Entaniya Fisheye HAL 250 Rear Group Kit 3.0

Entaniya Fisheye HAL 250 Rear Group Kit 3.0
Entaniya Fisheye HAL 250 Rear Group Kit 3.0


You can change the aperture ring of the back lens with a tool included in the kit.

It’s also possible to change the aperture by taking of the cap on the bottom part of the back lens and installing a ND filter. Alternatively, you can take off the IR filter when it’s not needed.

You can also use a ND filter that you have modified by yourself.


EF-Mount EF-Mount1 E-Mount1 E-Mount2 E-Mount3 MFT-Mount C-Mount

Product Information

Focal Length 3.0mm
FOV(Super35mm) 250°(h:250°/v:250°)
F Number f=3.0mm F/2.8
F4 / F5.6 / F8 / F11
(Interchangeable parts)
Image Size 180° = φ9.2mm
250° = φ11.9mm
Parts contained 1 Interchangeable Focus lock ring
1 Interchangeable Rear lens (F/2.8)
3 Screws
1 Tool A
1 Tool B
1 Aperture Disc Set (F4.0 / F5.6 / F8.0 / F11) one of each
1 ND filter Set (0.6 / 1.2) one of each
1 HAL Rear Lens Manual
1 Guarantee Card
Manufactured Made in Japan(except:caps)

Price ¥65,000JPY(Tax-exclusive )
Model Number RGK-M1-30
Note In order to make Entaniya Fisheye 250 MFT 2.3 and Entaniya Fisheye 250 M 3.0 compact in size the back of the lens has a bump. It might be impossible to install the lens to some cameras such as OLYMPUS OM-D E-M5(Mark1), OLYMPUS PEN E-PL6/E-PL5 and OLYMPUS PEN E-PM1/E-PM2 since the image sensor of these cameras interrupts the installation.If you have any questions please feel free contact us.

*This product is for an exchangeable lens exclusively for Entaniya Fisheye HAL 250 for changing the aperture. It can’t be used with other products.
*Since you have to disassemble and re-assemble the product, this will void the warranty regardless of the warranty period.
*Please make sure that no dust gets into the lens during the exchange process.
*Please note that we do not take any responsibility for any damage or loss caused to the lens or the camera due to the exchange.

How to exchange the back lens

Notice: The lens is very delicate. Please look at the video and execute the steps very carefully.
Do not attach the lens too tightly.

How to change the aperture ring

Start by taking off the back lens.

Image Circle

Image Circle