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Pinhole Cameras
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Orio



Level 4

Joined: 24 Feb 2007
Posts: 11664
Location: West Emilia

PostPosted: Mon Mar 12, 2007 10:11 am    Post subject: Pinhole Cameras Reply with quote

I make this sticky thread because I think that Pinhole Cameras are an important part of the manual photographic experience and they deserve a special room inside the Film Cameras forum.

So I invite the Pinhole Camera users to report about their instruments and results here. I don't have a pinhole camera but I am personally much interested in them, and I am looking forward to see your pinhole camera results here.
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ХОРИОС-61 ( ώρεος ) : Lens sana in corpore sano

Main Tools:
LENSES: Carl Zeiss, Leitz, Soviet, old Nikkors, others.
DSLR: Canon EOS 5D, 50D. SLR: Contax AX, RX, 167MT; Voigtländer Bessaflex TM; Praktica FX2; Nikon FM2, F70.
RANGEFINDERS: Contax G2, Kiev-4, Voigtlaender Bessa-T, Canonette QL17. MEDIUM FORMAT: Pentacon 6, Zeiss Super Ikonta, Agfa Record II.

Read Full List HERE
www.timelessphotography.eu
www.oriofoto.net

"Freedom is the right to tell people what they do not want to hear. " (George Orwell)
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vilva



Level 3

Joined: 04 Mar 2007
Posts: 529
Location: Vantaa, Finland

PostPosted: Mon Mar 12, 2007 2:51 pm    Post subject: Re: Pinhole Cameras Reply with quote

Orio wrote:
I make this sticky thread because I think that Pinhole Cameras are an important part of the manual photographic experience and they deserve a special room inside the Film Cameras forum.

So I invite the Pinhole Camera users to report about their instruments and results here. I don't have a pinhole camera but I am personally much interested in them, and I am looking forward to see your pinhole camera results here.


What about digital pinhole cameras? A 5D with an optimally dimensioned pinhole will produce quite decent results, comparable to non-optimal 6x6 pinhole photos, and with much less fuss. Here is an example:



Veijo
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Ballu



Level 3

Joined: 28 Feb 2007
Posts: 695
Location: Columbus, OH. USofA

PostPosted: Mon Mar 12, 2007 3:46 pm    Post subject: Reply with quote

Thanks Orio for this thread. I was about to send a mail almost on this line to you and Attila (wait.. will be getting).

@ Veijo: Thanks for results. I slipped into this black hole of MF by browsing your site. So, I always look towards your work, if I want to dig the technicalities in MF art (again its an art, just anti-thesis of Photoshop ). Smile

How do calculate the Circle of Confusion (DoF meter to me.. as defining DoF in real numbers is not something I like.. its creating more confusion to me)? And how to make the hole for Pinhole camera (esp for APS-C sensor)?
Any good pointer on web, your site and some words from your exp...
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peterqd



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Joined: 28 Feb 2007
Posts: 2337
Location: High Wycombe, UK

PostPosted: Mon Mar 12, 2007 4:47 pm    Post subject: Re: Pinhole Cameras Reply with quote

vilva wrote:
....an optimally dimensioned pinhole...


Hello Veijo, I'm a fan of your site too! Because of your beautiful pictures I am planning to visit Helsinki sometime soon to see the Lutheran Cathedral and the harbour, as well as many other places in the Baltic area.

This pinhole picture is fascinating. Could you explain how you adapted the camera, the exposure time and so on? Thanks.
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Lenses: M42 - CZJ 2.8/20, 2.4/35, 1.8/50, 2.8/50, 3.5/135 - Meyer/Pentacon 1.8/50, 2.8/50, 2.8/135, 4/200
Russian - J9, J21, J37A, M1v, M24m, I50-2, H44m-4 Vega12
Takumar 3.5/28, 3.5/35, 1.4/50, 1.8/55, 1.9/85, 3.5/135 - Vivitar 2.8/28
K-mount : Pentax-M 2.8/28, 1.7/50 - Tamron zooms :SP28-80, SP35-80, SP60-300, 80-210
DSLR:Canon 400D 35mm SLR: Pentax Spotmatic SP, SPII, SPF, ESII, K2, ME Super, P30 - Chinon CE-3 - Minolta XG-M - Praktica Nova 1B, PLC2
Rangefinder: Zorki-4, Beauty Light-o-matic III Medium Format: Yashica-Mat 124G
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Orio



Level 4

Joined: 24 Feb 2007
Posts: 11664
Location: West Emilia

PostPosted: Mon Mar 12, 2007 6:44 pm    Post subject: Reply with quote

Wow. What a DOF!
You win as always, Veijo. Wink
I have opened a Pinhole-dedicated sticky thread on the Digital Cameras forum, too.
_________________
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ХОРИОС-61 ( ώρεος ) : Lens sana in corpore sano

Main Tools:
LENSES: Carl Zeiss, Leitz, Soviet, old Nikkors, others.
DSLR: Canon EOS 5D, 50D. SLR: Contax AX, RX, 167MT; Voigtländer Bessaflex TM; Praktica FX2; Nikon FM2, F70.
RANGEFINDERS: Contax G2, Kiev-4, Voigtlaender Bessa-T, Canonette QL17. MEDIUM FORMAT: Pentacon 6, Zeiss Super Ikonta, Agfa Record II.

Read Full List HERE
www.timelessphotography.eu
www.oriofoto.net

"Freedom is the right to tell people what they do not want to hear. " (George Orwell)
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vilva



Level 3

Joined: 04 Mar 2007
Posts: 529
Location: Vantaa, Finland

PostPosted: Mon Mar 12, 2007 6:46 pm    Post subject: Reply with quote

Ballu wrote:
And how to make the hole for Pinhole camera (esp for APS-C sensor)?


Well, the size of the pinhole doesn't at all depend on the size of the sensor, just on the distance between the pinhole and the sensor. For a distance of about 45 mm the optimum size is roughly 0.25 mm, i.e. f/180. I didn't make my own pinhole but got a ready-made EOS bodycap pinhole from eBay, see my next posting.

An APS-C sensor isn't very suitable for pinhole photography because it is much smaller than an FF sensor, the angle of view is narrower and the resolution much lower, only about 40% of the FF resolution. The above photo taken with a crop camera would look roughly like this:



The lights were rather dim in the room (much dimmer than in the photo), and I exposed 90 s at ISO 1600, but I had to push more than one stop during post-processing in order to get a nice looking photo so I guess 240 s would have been better.

Veijo
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vilva



Level 3

Joined: 04 Mar 2007
Posts: 529
Location: Vantaa, Finland

PostPosted: Mon Mar 12, 2007 7:00 pm    Post subject: Re: Pinhole Cameras Reply with quote

peterqd wrote:
vilva wrote:
....an optimally dimensioned pinhole...


Hello Veijo, I'm a fan of your site too! Because of your beautiful pictures I am planning to visit Helsinki sometime soon to see the Lutheran Cathedral and the harbour, as well as many other places in the Baltic area.


Thanks Smile That's a good idea idea, Helsinki and Tallinn, maybe St. Petersburg, too.

Quote:
This pinhole picture is fascinating. Could you explain how you adapted the camera, the exposure time and so on? Thanks.


I had a commercial 0.25 mm bodycap pinhole mounted on an EOS 5D, no adaptation necessary, see the photo below. Exposure time 90 s at ISO 1600, but it ought to have been 240 s for better results - now I had to increase the exposure during PP.



Veijo
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vilva



Level 3

Joined: 04 Mar 2007
Posts: 529
Location: Vantaa, Finland

PostPosted: Mon Mar 12, 2007 7:05 pm    Post subject: Reply with quote

Orio wrote:
Wow. What a DOF!


The squares on the chess board are about 25 mm wide, and the chess pieces are from 30 to about 45 mm tall. The nearest piece was about 10 cm from the pinhole (if I remember correctly), and the distance to the bookshelf is about 160cm.

Quote:
You win as always, Veijo. Wink


Well, not always, you've got some nice photos yourself, too Smile

Quote:
I have opened a Pinhole-dedicated sticky thread on the Digital Cameras forum, too.


Fine, thanks,

Veijo
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Ballu



Level 3

Joined: 28 Feb 2007
Posts: 695
Location: Columbus, OH. USofA

PostPosted: Thu Mar 15, 2007 6:32 am    Post subject: Last Sunday in April is Pinhole day... Reply with quote

http://www.pinholeday.org/

from Site:
"What is Pinhole Day?
Anyone, anywhere in the world, who makes a pinhole photograph on the last Sunday in April, can scan it and upload it to this website where it will become part of the annual Worldwide Pinhole Photography Day celebration's online gallery.

The last Worldwide Pinhole Photography Day was celebrated around the planet on April 30, 2006...."

I dont have any experience in this field.. trying to get some knowledge/information.. but want to see some results from members... Wink
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vilva



Level 3

Joined: 04 Mar 2007
Posts: 529
Location: Vantaa, Finland

PostPosted: Thu Mar 15, 2007 8:00 am    Post subject: Re: Last Sunday in April is Pinhole day... Reply with quote

Ballu wrote:

I dont have any experience in this field.. trying to get some knowledge/information.. but want to see some results from members... Wink


See http://galactinus.net/vilva/pinhole/

Veijo
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Bob



Level 2

Joined: 15 Mar 2007
Posts: 396
Location: Wentzville, Mo.

PostPosted: Mon Jun 25, 2007 3:31 am    Post subject: Reply with quote

Here are a few ready made pinhole cameras. These are from Freestyle.

http://www.freestylephoto.biz/sc_main.php?cat_id=2203
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"In terms of addiction, there is nothing more powerful than men's toys."
Sammy Davis Jr.
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Attila



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Joined: 24 Feb 2007
Posts: 14626
Location: Budapest,Hungary

PostPosted: Thu Jul 05, 2007 12:07 am    Post subject: Reply with quote

This is our new member Laszlo's site! Enjoy !
http://see.yourweb.de/digitalpinhole/
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Olympus E-1,Nikon FA,Pentax MX,Praktica VLC3,Olympus-OM2N,Yashica Eletro 35 GN,Exakta Varex IIb,BESA L,Yashica MAT 124G
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Carl Zeiss Jena:Flektogon 2.8/20mm,4/25mm,2.4/35,2.8/65mm,4.5/4cm Tessar, 8/500mm Fernobjektiv
Pancolar 1.4/55mm,1.8/50mm,1.8/80mm,Tessar 2.8/50mm,Biotar 2/58mm,1.5/75mm,1.5/7,5cm
Carl Zeiss: Sonnar 2.8/135,2.8/180mm,Tessar 4/135mm
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Pentax: Pentax 1.2/50mm,1.8/85mm,4/200mm
Helios: Helios-40 1.5/8,5cm,Helios-44-1 2/58mm,Helios-44-2 2/58mm
Olympus OM: 3.5/18mm,3.5/21mm,1.4/50mm,3.5/55mm macro,2.8/135mm,2/90mm macro,35-70mm,60-250mm
Meyer: 4.5/35mm Primagon,Primoplan 1.9/58mm,1.9/75mm,2.8/100mm,Orestegor 2.8/135mm,4.5/40 Helioplan
Leica: 4/100 Macro Elmar,2.8/90 Elmarit last version

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F16SUNSHINE



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Joined: 20 Aug 2007
Posts: 2198
Location: Anacortes Washington

PostPosted: Thu Aug 23, 2007 11:31 pm    Post subject: Reply with quote

I currently do not shoot digital but rather black and white film and infra red. One of my more consistent pinhole tricks has to do more with subject than technique. Mounting an extention tube and creating a "longer focal length" to shoot landscapes has been quite happy at times. My best shots have come from using gaffers tape to attach a 720nm filter on front of pinhole cap and shoot Rollie/Maco infrared in 35mm or 6x7. The exposures run 2 to even 10 minutes sometimes shorter depending on the effect desired. The odd tones from the IR actually work fantastic with the soft focus from the pinhole iris. Shooting long expanses of water such as river or tidal areas looks amazingly dreamy especially with clouds working for you. I don't have a scanner at home but will try and post some samples soon. Lately while drooling for a 5D I have come accross a company called LifePixel. They do modifications for digital cams to shoot in IR (remove hotmirror and replace with new filter or clear glass). According to there info the IR mirror installed on most sensors does let IR thrue only minute and slowly. Maybe someone who has a FF or Crop cam would try some extended monochrome exposures with a 720nm filter and see if this could work similarly. The exposure time may be quite long. Hopefully noise will not surface as a problem. I am new to this forum and so far really enjoy the company. Thankyou all!!
Andy
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Epson R D1(s), Bessa L, Bessa R2m, Leica CL, CV 4.5/15, 4/25, 1.4/40, Zeiss ZM 2/35, Yashinon1.8/50, CLE 4/90, Zeiss Opton 4/135 T, Electro GT, Electro GX, Electro CC
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vilva



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Joined: 04 Mar 2007
Posts: 529
Location: Vantaa, Finland

PostPosted: Fri Oct 19, 2007 8:31 pm    Post subject: Reply with quote

Just to show what kind of image quality can be obtained with a 6x6 pinhole camera, good film (Fuji Neopan 100 Acros) and some post-processing, I increased the image size of my old Tallinn pinhole photos at http://galactinus.net/vilva/pinhole/tallinn_ph.html from 730 pixel wide to 960 pixel wide. The negatives were scanned at 2400 dpi with an Epson 4990 to yield about 28 Mpixel originals, which I down-sampled and sharpened. I also prepared 1200 pixel wide versions of three photos to show the potential even more clearly:

http://galactinus.net/vilva/pinhole/tallinn_ph_files/tallinn04_1200.jpg
http://galactinus.net/vilva/pinhole/tallinn_ph_files/tallinn07_1200.jpg
http://galactinus.net/vilva/pinhole/tallinn_ph_files/tallinn09_1200.jpg

These are rather wide angle shots, the nominal "focal length" is 25 mm, the real one is probably nearer to 28mm, i.e. about half of the frame width and height (56 mm x 56 mm). The FOV corresponds roughly to a photo taken with a 11-12mm lens on a full-frame 35 mm body and cropped to a square. The perspective is correct if the photos are viewed from a distance of half the image width.

Veijo
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Orio



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Joined: 24 Feb 2007
Posts: 11664
Location: West Emilia

PostPosted: Fri Oct 19, 2007 11:25 pm    Post subject: Reply with quote

vilva wrote:
Just to show what kind of image quality can be obtained with a 6x6 pinhole camera, good film (Fuji Neopan 100 Acros) and some post-processing,


Veijo, these are simply AMAZING. I don't think I ever saw better pinhole photos anywhere.
_________________
_
ХОРИОС-61 ( ώρεος ) : Lens sana in corpore sano

Main Tools:
LENSES: Carl Zeiss, Leitz, Soviet, old Nikkors, others.
DSLR: Canon EOS 5D, 50D. SLR: Contax AX, RX, 167MT; Voigtländer Bessaflex TM; Praktica FX2; Nikon FM2, F70.
RANGEFINDERS: Contax G2, Kiev-4, Voigtlaender Bessa-T, Canonette QL17. MEDIUM FORMAT: Pentacon 6, Zeiss Super Ikonta, Agfa Record II.

Read Full List HERE
www.timelessphotography.eu
www.oriofoto.net

"Freedom is the right to tell people what they do not want to hear. " (George Orwell)
_
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