Asahiflex Model 1A (1953) with 50mm F3.5 Asahi-Kogaku Takumar Lens & Case
AU $283.57
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Reviews (4)
09 September 2021
Well supplied add-on
Fits and works as specified!
26 July 2018
One of the Best Pentax Bellows Units easily adaptable to other Camera Makes
The Asahi Pentax Auto Bellows or “Honeywell Pentax Auto Bellows Unit” is one of the most commonly available of the Pentax bellows units. Most of the packaging in the USA and Mexico is labeled “Honeywell Pentax Auto Bellows Unit”, and this bellows is sometimes referred to as a “Model 7095” because of the prominent catalogue number on the Honeywell packaging. This bellows unit is robust and versatile, highly flexible, well designed and built. It can be used with the Pentax Slide Copier attachment.
This auto bellows unit utilizes a strong, well-engineered single “X” rail. It also incorporates a geared tripod mounting block that can be positioned along the bottom of the X rail to properly balance your camera/bellows/lens combination. The operation of the bellows unit is smooth, with front lens board, rear camera board, and movable tripod seat gear operated with micro-action control knobs. It uses nylon blocks as bearing surfaces. All three movement operations are precise, allow no creep, and have a locking knob on the opposite side to the control knobs.
The minimum extension at 39mm is roughly equivalent to the combination of a number #1 and #3 extension tube, and to a maximum extension of 170mm. With a 50mm standard lens in reverse mount, you can attain from 1.10 to 3.26 times life size. Mounting a lens in reverse requires the front lens board be taken off the X rail and re-installed facing backward or using a Pentax Reverse Adaptor (M42).
The rear camera board does not pass aperture information back and forth between the lens and the body and additional extension tubes such as the Auto Extension Tube Set (M42) can be used between the camera body and the bellows to attain even higher magnifications. The Auto Extension Tube Set (M42) can also be used on the screw mount lens board and will allowing automatic diaphragm operation with the dual cable release.
When using a K mount body with the Pentax Mount Adaptor K, you can also use the non-auto Pentax Extension Tube Set K or the Pentax Auto Extension Tube Set K and mount the Pentax Mount Adaptor K into the extension tube to gain further extension on the camera end.
This bellows unit supports automatic diaphragm operation with the older manual shutter film cameras using the dual cable release, where the first cable stops the lens aperture down before the second triggers the camera. This dual cable operation is not usable with the modern K Mount bodies that have electronically activated shutters, unless you have an adaptor joining the cable to the 2.5mm Stereo plug on the digital camera bodies.
An additional feature of this bellows is that there are two metal extension scales, one for 50mm lenses and one for 55mm lenses that attach to magnetized pads on the top of the front and rear boards and shows the magnification.
The Camera Body Connector Ring is removable from the bellows, and doing so is the easiest way to mount the camera body. K mount camera bodies require a Pentax Mount Adaptor K. The camera mount can be rotated, within the rear board allowing the camera body to be changed to vertical orientation. With modern digital bodies the bulkier body will not allow this unless a short (#1) extension tube is used to position the body further out to clear the rear board.
Leaving a short, non-auto (or auto), Extension Tube K fitted with a Pentax Mount Adaptor K on the tube gives you the advantage of a semi-permanent K mount conversion and avoids the finicky task of removing the adaptor from the body every time the bellows is removed. By filing a small groove in the knurled ring of the Camera Body Extension Ring of the bellows, you can utilize the locking pin on the extension tube to create a sold connection between the three components. Now the extension tube, with the Pentax Mount Adaptor K will not unscrew when rotating the camera body.
The tripod mounting surface is generous, with the single ¼-20 hole is located on the movable mounting block which can be moved separately from the bellows extensions for balance on a tripod.
There is a dedicated Asahi Pentax Bellows-Takumar 100mm F4.0 lens, but regular lenses can be used as well. This robust bellows can easily handle the extra weight and longer length of Takumar screw mount lenses up to 150mm, 200mm F4.0 or even the 300mm F4.0.
Considering how many years ago this unit was made it is a testament to the build quality and components that many are still functioning properly.
26 November 2020
Pentax replacement rubber eye cup K-1 & K-1 Mk.II
OEM replacement and probably has the same vulnerability to getting ripped as the original, but what can you do.