Kinebohのブログ一覧

Rainy season front comes up to Shikoku, so weather forecast tells, it will come across to Osaka very soon, probably tomorrow. Hydrangea in my garden is flourishing now.
Tenjimbashi 5 Chyome shopping street started to deal the day before yesterday. Everything is going well, better to best in our country.
All the schools and companies will be busy studying and working.

My lens resource has exceeded my own demand in number already, I have been interested too much in old lens modification hobby field, I was in such situation by modify Minolta SLR lens on Canon EOS mount several years ago before Mirror-less digital models are prevailing like now. So, tens of Rokkor lenses including zooms are at my hand, the condition means that only a mount adapter between Canon EOS and SONY E can play any Rokkor lenses as I desire. Remembering past, I had been a critical inconvenience with Canon Digital SLR camera body, darker scenery in darker OVF operation especially, I used manual focusing and manual iris controlling, I was in dark circumstance all the time.
Mirror-less body designing makes it possible to put various old Range -Finder camera lenses on the flange surface with flange back 18 mm depth, tens of old camera had been obliged to appear as donors by myself, most of them are standard focal length around 50 mm.
Now, I'm in a Paradise like circumstance with far lighter EVF scenery in addition the focusing point could be magnified with a single button action. As the focusing action is one of a sacred moment for me as if I pray to God, adjusting environmental focusing condition is the first requirement to start Photo Hobby again for me.
Now, I'm in a Paradise as a Dragonfly swimming there so freely.
I cannot be too much to appreciate to the engineers who had been contributing with bloody efforts in the researching and developing field.

Konica Hexanon 40mm/2.8 50 years old lens has activated on SONY alpha 7 digital format yesterday, unexpectedly it waked up and must be frightened so much. Without distorting from my imagination, this triplet lens played well with some expected performance.
Though this small has a tendency of vignetting so naturally, the sharpness and resolution at center position are superb enough to satisfy my requirement. It would be brought around everywhere I go from now, lighter and smaller the better. Without writing here, Carl Zeiss Sonnar 85mm/2.8 also over 50 years ago played well, with no complaint, perfect performance.

Logging in over 1,700 km since she came to me at hand, wheel alignment was checked again and corrected yesterday into ideal condition. Toe-in 1 mm and thrust angle plus 2 minutes were corrected into zero values. As the distortion and deformation are inevitable by the former wheel alignment and axle construction, it takes time to be reformed into more adequate condition, such kind of phenomena is observed especially in rubber material of the bushes scattered everywhere in moving construction. This is why the correction and adjustment could not be accomplished by only a single trial.
In order to release the deformation stress when alignment is changed, the vehicle must be moved forward and backward removing device setting and reconstruct it again. This procedure is done in every turn, very troublesome muscle work at all with inviting precise concentration.
We cannot ignore the presence of rubber material in the axle construction.
Of course repeated experiences and piled know-how are the key to success to establish an ideal wheel alignment and axle construction.
It goes without writing that patience and training are indispensable, however sophisticated machinery might be, it cannot go alone.
The physical property, elastic strain, viscoelasticity, residual strain, recovery time and hysteresis are "The Sanctuary Field" those cannot be invaded by an amateur or a layman.

Konica EE Matchi is the donner for Hexanon 40mm/2.8 Triplet lens this time. Original Yahoo Auction pic is invited to show an Old Range Finder Camera 50 years ago.
All the electric and mechanical linkage were removed thoroughly remaining only ilis control, no original figure remains at all with slimy and smart shape. Focusing mechanism is original front element moving style, 30 cm close up is capable. Ilis closure is controlled by a small pin situated at 2 o'clock position, no index but no inconvenience, because the ilis position is decided not by the index but by the actual focusing depth on the specific scenery, shutter speed and iris position are controlled manually with automatic ISO setting. I'm going out for photo shooting today with this newly prepared equipment triumphantly, but I don't know what kind of inconvenience would happen, I will not be killed what ever might happen. Reporting later.