Bellows-Takumar 1:4/100mm

Bellows-Takumar 1:4/100mm on Honeywell Pentax Spotmatic and Auto Bellows II

 


Asahi Pentax Auto Bellows / Slide Copier Operating Manual

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Download the Honeywell Pentax Takumar Lens Manual

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Download Takumar Interchangeable
Lenses Operating Manual

Download Asahi Pentax Takumar Interchangeable Lenses Operating Manual

Download Asahi Pentax Takumar Interchangeable
Lenses Operating Manual (early version)

Bellows-Takumar 100mm f/4.0 catalog image

Bellows-Takumar 1:4.0/100mm - Image from the Honeywell Pentax Takumar Lens Manual - Download Here!

Focal length lOOmm Minimum aperture F22
Maximum aperture F4 Dimensions  
Lens elements 5 in 3 groups    Maximum diameter 54.4mm
Diaphragm Pre-set    Length 36mm
Angle of view 24.5° Weight O.311b (139g)
Minimum focusing distance Varies with length Filter size 49mm



DESCRIPTION -  Bellows-Takumar 100mm f/4 is short barrel lens for use with bellows extension devices, in photomacrographic and scientific applications. With bellows fully extended, close-up function similar to that of SMC 100mm f/4 Macro-Takumar. With bellows at minimum extension, can be used as general purpose telelens. Superb optical correction.

Features  This is a long focal length macro lens to be used together with the Bellows or Auto-Bellows Unit.

Emphasis has been placed on precision at the expense of brightness:  distortion has been reduced to practically nil and the same fine results are obtained at all distances down to magnified close-ups.  Combined with the Bellows Unit, photography from infinity down to life-sized close-ups is possible, while with the Auto-Bellows magnification of up to 1.32 is possible.  Thus you can take distant scenics and superb close-ups with one and the same lens.  The 100mm focal length makes this lens ideal for studies of insects, small animals and other subjects which are difficult to approach and also for close-ups under difficult lighting conditions: the required magnification is obtained without having to bring the lens close in.  This lens also has fine perspective characteristics.

Main Uses  Ideally suited to studies of insects, the natural perspective qualities of this lens also make it a fine choice for all close-ups taken from some distance from the subject.

Using the Auto-Bellows II the Bellows-Takumar 100mm f/4 lens photographs from 1.32X magnification to infinity ( ).  Used with the standard Bellows Unit, this short barrel lens enables you to photograph from life size to infinity. Extremely convenient for close-ups from a distance.


Asahi Pentax Auto Bellows / Slide Copier Operating Manual

Download Honeywell Pentax Lens Manual
Download the Honeywell Pentax Takumar Lens Manual

thb_cover_takumar_i_l_op_man.gif (3501 bytes)

Download Takumar Interchangeable
Lenses Operating Manual

Download Asahi Pentax Takumar Interchangeable Lenses Operating Manual

Download Asahi Pentax Takumar Interchangeable
Lenses Operating Manual (early version)

Asahi Pentax Spotmatic Manual - November 1969
Download Spotmatic Manual

Bellows-Takumar 1:4/100mm on Honeywell Pentax Spotmatic and Auto Bellows II
 
Bellows-Takumar 1:4/100mm on Honeywell Pentax Spotmatic and Auto Bellows II
 
Bellows-Takumar 1:4/100mm
 
Bellows-Takumar 1:4/100mm
 
Bellows-Takumar 1:4/100mm on Honeywell Pentax Spotmatic and Auto Bellows II
 
Asahi Pentax Auto Bellows / Slide Copier Operating Manual

Download Honeywell Pentax Lens Manual
Download the Honeywell Pentax Takumar Lens Manual

thb_cover_takumar_i_l_op_man.gif (3501 bytes)

Download Takumar Interchangeable
Lenses Operating Manual

Download Asahi Pentax Takumar Interchangeable Lenses Operating Manual

Download Asahi Pentax Takumar Interchangeable
Lenses Operating Manual (early version)

 

Asahi Pentax Spotmatic Manual - November 1969
Download Spotmatic Manual

 

Editorial:

The Takumar Macro's are great lenses. You have a choice from the following:

The earliest 50mm offers 1:1 magnification with no bellows or extension tubes. You would close aperture prior to exposure, after focusing. For slow work, a great choice.

The later 50mm lenses are the same optical design but have progressively better coatings from the earliest through the SMC version. All have auto-aperture and offer 1/2 life-size magnification without bellows or extension tubes. These lenses don't offer the 1:1 because of the limitations of the auto-aperture mechanism inside the lenses. 1:1 can be achieved with diopters, bellows, or extension tubes.

The 100mm lenses are all the same optical formula with different mounting designs (barrel mount or helicoid mount) and progressively better coatings. The ultimate is the 4/100 Macro SMC.

All the auto-aperture lenses are quicker lenses to use and more suitable to subjects that require quicker camera operation.

The 100mm lens is a great lens to use for greater working distance, though you will still be very close to the subject. I find that for my table-top work the 100mm is my preferred lens because it gives me more room for working with the items, the lights, and the camera itself. I am working about a foot or two away from the subject as opposed to inches with the 50mm.

Another benefit of the 100mm is the reduction of perspective distortion. The longer lens will achieve the same depth of field at a given magnification but less distortion.

The cheapest will be the manual 50mm and to me, the best buy. It is the most flexible lens if a little slower to work with. Macro work is not typically fast-paced so perhaps that's enough said.

The 100mm is the most expensive because it was made in relatively fewer numbers and offers the SMC and open-aperture metering. It's my favorite lens but many of my best shots were made with either the manual 50mm or SMC 50mm.

I have but rarely use the 100mm bellows lens, though it is also a fine lens, and generally, even with bellows, will sell for less than the helicoid-mounted version.

So think about your primary subject matter, whether you need to work fast or can work slow; whether you want to work very close, or get back a few more inches. If you had a Spotmatic F, the other factor would be whether or not you would want open-aperture metering. Ironically though, for macro work, you should be stopping down to check depth of field anyway so open-aperture metering is less valuable in these circumstances.

More on the various macro lenses on my web site http://whitemetal.com/pentax/index_pentax_lenses.htm and plenty of macro shots made with them. http://whitemetal.com/thread/index.htm


Asahi Pentax Auto Bellows / Slide Copier Operating Manual

Download Honeywell Pentax Lens Manual
Download the Honeywell Pentax Takumar Lens Manual

thb_cover_takumar_i_l_op_man.gif (3501 bytes)

Download Takumar Interchangeable
Lenses Operating Manual

Download Asahi Pentax Takumar Interchangeable Lenses Operating Manual

Download Asahi Pentax Takumar Interchangeable
Lenses Operating Manual (early version)

 

 
 

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