Takumar is a sub-brand used by Pentax in the M42 screw era. Most Takumar have M42 threaded interfaces, not the snap-on interface (PK) used by Pentax now. , is it too difficult to use the current Pentax camera? You must use an adapter ring or modified lens, but there are a very small number of various takumar PK mount lenses.
Super is too bitter (S-T) is it too bitter? Later models generally add the automatic aperture function of M42 (there is a needle-like protrusion at the tail and an auto-m button). In addition, at this time Multi-layer coating began to be used, which is the predecessor of SMC coating.
Part of the Taiku and Super Taiku did not change the optical structure, or changed the optical structure a small amount, replaced it with a PK snap mount, and re-launched it as the first generation of Pentax PK mount lenses. This generation of lenses is generally The lens labeled ashi PENTAX SMC XXmm does not have an aperture lever. To distinguish it, people often call it the Pentax K series. In fact, this "K" is not marked on the lens and does not refer to the later M/A/F/FA/DA/ DAL/DFA are clearly marked on the lens.
Both Taiku and Super Taiku are lenses designed in the black-and-white film era. The lenses have strong analytical capabilities and are very suitable for humanistic documentary shooting. After all, this is a product named after a famous journalist and photographer. However, because color photography was not considered, most digital cameras have serious color cast problems, and due to the age of the lenses, the discoloration is serious, and they generally appear yellowish.
SMC coating is a continuously developing technology. Although Pentax has not explicitly promoted several generations of Shenma lenses, we can clearly feel that K, M, A, F, FA, and DA lenses from different eras The coatings are different, constantly changing from blue, yellow, red, and green.
In the era of automatic lenses, SMC, as a coating technology logo, continued to appear in front of various Pentax lenses until it was gradually replaced by HD coating in 2014.
Is it too bitter? In the era of automatic lenses, it seems that there is only one product, namely the takumar F-zoom 70-210 4-5.6, which is relatively alternative. All other takum are manual.
Takumar series lenses do have excellent workmanship and outstanding appearance design, but it cannot be denied that the technology 50 years ago is lagging behind in many places compared to today, so don’t believe the hype of some profiteers.
In addition to manual focus only, takumar has some other shortcomings:
1. The aperture is generally small
2. The color cast is serious when shooting in color
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3. Need to transfer or modify the lens
4. If the modification accuracy is not good, it may cause infinity to be unable to focus, affecting the use
5. It is old, There are few lenses in good condition, and many lenses have been dismantled and repaired, which may affect accuracy
6. The aperture cannot be controlled by the body, and the maximum aperture cannot be used to view the view