RCE Foto

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Diy...

Covid, tra autarchia ed archivi

View gallery (18 photos)

Diy sent on November 10, 2020 (19:07) by Paolo P. 87 comments, 3730 views. [retina]

, 1/100 f/6.3, ISO 1000, tripod.

Costruzione per scansione diapositive 24x36 e negativi 24x36 – 45x60 – 60x60 Fotocamera Nikon D610 – Ottica Sigma 105 mm macro Dimensioni ottimizzate per usare sistema di illuminazione con una normale lampada da tavolo, nonché per avere il mirino all'altezza occhi da seduto alla scrivania. La scatola in legno è montata “a coulisse” su due guide fissate alla base ed è posizionata per avere la distanza più o meno corretta della fotocamera per le riprese di fotogrammi 24x36 con rapporto 1:1 Il fissaggio è ottenuto per mezzo di due viti “maschio/femmina” con filettatura interna (di quelle usate per i mobili) disposte in modo asimmetrico onde non creare asse di rotazione. La cassetta di supporto dispone di due ulteriori fori (non visibili) che consentono di arretrare il sistema sulle guide per le riprese di formati maggiori. Slitta micrometrica con doppi cursori ortogonali. La slitta è fissata con due viti alla base di legno. La distanza dal piano di ripresa è calcolata con approssimazione di circa 2 mm in modo tale che la verticale passante dal baricentro del sistema (fotocamera + ottica) cada in centro alla base di appoggio onde non generare alcun “momento” sull'apparato di fissaggio che risulta praticamente statico. L'ottimizzazione della distanza avviene per mezzo della vite micrometrica come pure la centratura fine in orizzontale. Il telaietto posto davanti all'obiettivo dispone di due viti “a galletto” che ne consentono lo scorrimento in verticale su due “asole” fresate sulla parete frontale. Sulla parte posteriore illuminazione a 4000 °K con diffusore su telaietto di cartoncino nero. Funziona, e con rapidi aggiustamenti mi consente di scansionare anche i negativi di formati diversi prodotti, ai tempi, con Rollei biottica, Zenza Bronica, Hasselblad 500 C. Un piccolo gioco a cu mi sono dedicato senza pretese particolari, certo di essere lontano dai risultati di Carlo (Alfonso), Carlo (Magher3D), Fabio etc…. ben scusandomi con chi non sto menzionando. Al più mi conservo quel che posso scegliendo alcune opportunità fra parecchie decine di migliaia di dia e negativi prodotti nel corso di una vita con una filosofia condivisa, non più tardi di 25 giorni or sono, con Carlo Chierichetti … tristissima storia che stento a credere vera.



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avatarjunior
sent on November 11, 2020 (12:29) | This comment has been automatically translated (show/hide original)

Masterpiece!!!!

avatarsenior
sent on November 11, 2020 (14:20) | This comment has been automatically translated (show/hide original)

Excellent idea and beautiful project, autumn and winter (and now covid) are the ideal seasons for this type of work. It took me a few years to complete the recovery. Hello and good work.

avatarsenior
sent on November 11, 2020 (16:21) | This comment has been automatically translated (show/hide original)

:-o great work

avatarsupporter
sent on November 11, 2020 (18:09) | This comment has been automatically translated (show/hide original)

Claudio,
Ciriaco,
Pierpaolo.[ /B]
I thank you very much for your appreciation.
A cordial greeting.
Paolo

avatarsupporter
sent on November 11, 2020 (19:02) | This comment has been automatically translated (show/hide original)

Beautiful construction really effective, because removing it, someone could take inspiration, it is also a document!
An Agatha Greeting

avatarsupporter
sent on November 11, 2020 (19:54) | This comment has been automatically translated (show/hide original)

Hi Agata, thank you for the passage; I am not jealous of any inventions like this, I have already said that I am leaving it, indeed I am now modifying the title.
A cordial greeting.
Paolo

avatarjunior
sent on November 11, 2020 (20:36) | This comment has been automatically translated (show/hide original)

But don't buy a scanner with 160 euros first you have decent files to work without size and sew systems that the results are often disappointing. N.B I also made more than bertoldo rings inversions panels etc
in the end I gave up . Greetings Tony

avatarsupporter
sent on November 11, 2020 (20:43) | This comment has been automatically translated (show/hide original)

A scanner of a few hundred euros is not enough to overcome in quality the image taken from a slide photographed with a good machine and macro lens, then speed and practicality is another thing I think so

avatarjunior
sent on November 11, 2020 (20:52) | This comment has been automatically translated (show/hide original)

I always had the Nikon color scanner which cost me a bingo then I no longer found the drives at the end scrapped 2 years ago after all the tests I have the 105 macro nikon D810 I found a canon scanner below cost
e weird but I have files not bad.
This is not a matter of thought but of results.

avatarjunior
sent on November 11, 2020 (21:03) | This comment has been automatically translated (show/hide original)

Hi I just uploaded 3 photos to my gallery that I scanned with my Canon scanner

avatarsupporter
sent on November 11, 2020 (21:04) | This comment has been automatically translated (show/hide original)

I also had a dedicated Reflecta scanner I think, good enough for the times but I never got excited especially for the operational slowness then I with my machine if I photograph a slide I take three raw photos with
diverse exposures and then assemble them quickly with an HDR and the quality is excellent of course if the start was great and the weather did not do great damage

avatarsupporter
sent on November 11, 2020 (21:09) | This comment has been automatically translated (show/hide original)

I have now seen very nice compliments, but with the machine and macro lens you can do even better I am not trying but Carlo (Alfonso), Carlo (Magher3D) and Fabio have taken amazing photos, then clearly everyone uses the system he prefers, anyway good Tony

avatarjunior
sent on November 11, 2020 (21:13) | This comment has been automatically translated (show/hide original)

Anyway I had to throw several slides I have about 20 years of DIA and I have not yet finished the scanner
ne 4 at a time.

avatarsupporter
sent on November 11, 2020 (21:40) | This comment has been automatically translated (show/hide original)

Everyone has as much fun as they like in the context of the lawful.
No one is the source of absolute truth.
The discretion over the use of my money is mine alone.

avatarjunior
sent on November 12, 2020 (11:12) | This comment has been automatically translated (show/hide original)

Look I wasn't going to offend anyone I brought my experience then rightly everyone does what they believe Hello and have fun Tony

avatarsenior
sent on November 12, 2020 (11:24) | This comment has been automatically translated (show/hide original)

Just brilliant!
Bravissimo Paolo, congratulations !
Cyo!
Massimo :-)

avatarsupporter
sent on November 12, 2020 (11:29) | This comment has been automatically translated (show/hide original)

No problem, I always tend to "stop" any initiative that can lead to controversy or degenerate.
In any case my experience (and the induced fun) has led me to this small appliance from which I get excellent results in general terms but, above all, it allows me to scan even give and negative 45x60 and 60x60 with an equally excellent result.
A net useful area of 576 mmq is obtained on the FF or greater than an APS C which is 384 mmq while maintaining the original 1:1 dimensional ratio on which to possibly "work" later.
A greeting.
Paolo

avatarjunior
sent on November 12, 2020 (11:44) | This comment has been automatically translated (show/hide original)

Quiet Paul I was not going to make any polemics if you understood this I apologize.
I and a friend of mine who is also a carpenter had also done something similar but given the timing
1 give it at a time we abandoned it.
Topic Closed Hello Tony

avatarsupporter
sent on November 12, 2020 (12:48) | This comment has been automatically translated (show/hide original)

Thank you Tony, if you need an apology they are reciprocal, otherwise everything O.K.
Quite at the time.... Unfortunately, I am "confined" and, unfortunately, I have also been a pensioner for a day.
A greeting.
Paolo

avatarsupporter
sent on November 12, 2020 (12:50) | This comment has been automatically translated (show/hide original)

Hello Massimo !
I thank you for the passage, for the comment, as well as for the opportunity for a very cordial greeting.
A soon.
Paolo


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