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	<title>bert wynant photoblog &#187; 120</title>
	<atom:link href="http://blog.bertwynant.net/tag/120/feed/" rel="self" type="application/rss+xml" />
	<link>http://blog.bertwynant.net</link>
	<description>photography by Bert Wynant</description>
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		<title>DIY pinhole camera.</title>
		<link>http://blog.bertwynant.net/2011/02/diy-pinhole-camera/</link>
		<comments>http://blog.bertwynant.net/2011/02/diy-pinhole-camera/#comments</comments>
		<pubDate>Tue, 22 Feb 2011 19:34:13 +0000</pubDate>
		<dc:creator>Bert</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[120]]></category>
		<category><![CDATA[delta 100]]></category>
		<category><![CDATA[diy]]></category>
		<category><![CDATA[f/300]]></category>
		<category><![CDATA[ilford]]></category>
		<category><![CDATA[mamiya rb67 pro-sd]]></category>
		<category><![CDATA[pinhole]]></category>
		<category><![CDATA[rodinal 1:50]]></category>

		<guid isPermaLink="false">http://blog.bertwynant.net/?p=432</guid>
		<description><![CDATA[<p style="text-align: center;">i&#8217;ve been occupied with pinhole photography lately. i&#8217;ve always wanted to do some experimenting with pinhole photography, but never managed to due to several reasons&#8230; after doing some reading up, i made some plans and calculations to create my first &#8230;</p>]]></description>
			<content:encoded><![CDATA[<p style="text-align: center;">i&#8217;ve been occupied with pinhole photography lately. i&#8217;ve always wanted to do some experimenting with pinhole photography, but never managed to due to several reasons&#8230; after doing some reading up, i made some plans and calculations to create my first pinhole camera. medium format film seemed like a perfect film format to use, so i thought it would be a good idea to involve one of my Mamiya RB67 film backs in this little &#8216;project&#8217;. doing so, decent film handling would be ensured.</p>
<p>&nbsp;</p>
<p style="text-align: center;">i asked my dad to make me a wooden front cover to put in front of the film back. whenever i ask him to make me something, i give him some measurements and ideas and he always manages to come up with something that looks way better than i could even imagine :D gotta love it!</p>
<p>&nbsp;</p>
<p style="text-align: center;">so the pinhole camera(i named her &#8216;Zulma&#8217;, that&#8217;s a pretty descent camera name if you ask me ;-p) is mainly a Mamiya RB67 film back and a wooden front cover held together by a bunch of rubber bands. the camera has a focal length of 48mm(equivalent to 24mm in 35mm format) and an aperture of f/300(will be changed to f/160 soon though).</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2011/02/bw_20110222_camera.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2011/02/bw_20110222_camera_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p style="text-align: center;">below are some pictures of my first test roll. the main purpose was to check whether the pinhole covered the entire negative; turns out it did, so mission accomplished!</p>
<p>&nbsp;</p>
<p style="text-align: center;">i&#8217;m currently using a 0.16mm pinhole(gives an aperture of f/300), because that&#8217;s what i had available. the optimal pinhole size should be 0.292mm for my setup, so i&#8217;ll be using a 0.3mm pinhole(gives an aperture of f/160) soon. because the pinhole size(and the aperture) is currently way too small, diffraction effects increase a lot and cause much blur. hence the not-that-sharp-photos below. i somehow like the blurriness though&#8230;</p>
<p>&nbsp;</p>
<p style="text-align: center;">all pictures were exposed for 90 seconds. film used: Ilford Delta 100(developed in Rodinal 1:50).</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2011/02/bw_20110222_001.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2011/02/bw_20110222_001_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2011/02/bw_20110222_002.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2011/02/bw_20110222_002_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2011/02/bw_20110222_003.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2011/02/bw_20110222_003_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2011/02/bw_20110222_004.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2011/02/bw_20110222_004_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2011/02/bw_20110222_005.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2011/02/bw_20110222_005_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p style="text-align: center;">the photos are far from perfect. there are still some flaws, but the wooden front cover is just a test version. hopefully the issues can be addressed in the next &#8216;version&#8217; of the wooden front cover&#8230;</p>
<p>&nbsp;</p>
<p style="text-align: center;">-bert</p>
<p>&nbsp;</p>
]]></content:encoded>
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		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>21 july 2009</title>
		<link>http://blog.bertwynant.net/2009/10/21-july-2009/</link>
		<comments>http://blog.bertwynant.net/2009/10/21-july-2009/#comments</comments>
		<pubDate>Sun, 04 Oct 2009 13:05:36 +0000</pubDate>
		<dc:creator>Bert</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[120]]></category>
		<category><![CDATA[belgium]]></category>
		<category><![CDATA[brussels]]></category>
		<category><![CDATA[ektachrome 200]]></category>
		<category><![CDATA[kodak]]></category>
		<category><![CDATA[mamiya 7II]]></category>
		<category><![CDATA[mamiya N 80/4 L]]></category>
		<category><![CDATA[medium format]]></category>

		<guid isPermaLink="false">http://blog.bertwynant.net/?p=354</guid>
		<description><![CDATA[<p style="text-align: center;">21<sup>th</sup> of July; Belgium&#8217;s national day. for the first time in my life, i went to Brussels on Belgium&#8217;s national day. i thought there would be lots of interesting things to see on that day, but i was WRONG! &#8230;</p>]]></description>
			<content:encoded><![CDATA[<p style="text-align: center;">21<sup>th</sup> of July; Belgium&#8217;s national day. for the first time in my life, i went to Brussels on Belgium&#8217;s national day. i thought there would be lots of interesting things to see on that day, but i was WRONG! it was way too crowded(for my likings) and due to a death threat against Queen Fabiola, you couldn&#8217;t really go anywhere you wanted&#8230;</p>
<p>&nbsp;</p>
<p style="text-align: center;">so in the end, i finished only one roll of slide film(120 format, 6&#215;7, so ten pictures in total :p). it was also the first time i used my <a href="http://www.mamiyaleaf.com/legacy_mamiya7_ii.asp" target="_blank">Mamiya 7II</a> (w/ 80mm lens; equivalent to 39mm in 35mm format), so i&#8217;m actually posting a test roll here. the pictures aren&#8217;t all that great, but they&#8217;re still okay(sorry Sebastian! i know i should strive for more (blog) quality, instead of posting entire test rolls :D). i&#8217;m more disappointed in the way my scanner can&#8217;t correctly reproduce the colors of slide film. i&#8217;ve experienced this before with slide film. the colors simply don&#8217;t match up with the colors seen on the slides. quite a shame, &#8217;cause i like the colors of Ektachrome 200&#8230; especially with the slightly yellow cast due to expiration of the film).</p>
<p>&nbsp;</p>
<p style="text-align: center;">photo geek info:<br />
Mamiya 7II, Mamiya N 80/4 L, Kodak Ektachrome 200 (expired in 2004)</p>
<p>&nbsp;</p>
<p style="text-align: center;">
when i saw the scene below, it immediately reminded me of the heated discussion about banning headscarfs in Belgium. i think it&#8217;s a pretty pointless discussion though, which is generally fed by xenophobes *slash* Islamophobes&#8230; the Belgian flag with &#8220;nostalgia&#8221; written on it, reminds me of the people who keep whining about how good everything was when there weren&#8217;t so many immigrants around yet&#8230; *sigh*
</p>
<p style="text-align: center;">note to self: stop walking before taking a picture next time ;)</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2009/10/bw_20091002_001.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2009/10/bw_20091002_001_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p style="text-align: center;">this picture looks better on slide, because my scanner has cut off the lower part of the picture. the woman&#8217;s elbow isn&#8217;t really cut off on the original picture. Ektrachrome slides have this big border at the top and nearly no border at the bottom, so the neg holder overlaps the bottom part of the slide, hence a part of the picture is cut off&#8230;</p>
<p style="text-align: center;">i need anti-Newton ring glass for my scanner so badly, so that i can finally scan the WHOLE negative. i best buy it before i start scanning <a href="http://blog.bertwynant.net/img/2009/10/bw_20091002_film.jpg" target="_blank">this shitload of film</a>, &#8217;cause otherwise i&#8217;m going to end up with cropped pictures again :-/</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2009/10/bw_20091002_002.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2009/10/bw_20091002_002_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p style="text-align: center;">at some point, i even found a random building site more interesting than Belgium&#8217;s national day.</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2009/10/bw_20091002_003.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2009/10/bw_20091002_003_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p style="text-align: center;">this is my favourite picture of the roll. i stood next to him for a while; observing him, setting up my camera, pretending as if i was going to take pictures of the soldiers behind him to finally strike when he looked in my direction :D</p>
<p style="text-align: center;">he looks quite surprised, yet curious&#8230;</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2009/10/bw_20091002_004.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2009/10/bw_20091002_004_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p style="text-align: center;">&#8230; and here, he already looks rather annoyed with me taking pictures haha :&#8217; )</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2009/10/bw_20091002_005.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2009/10/bw_20091002_005_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p style="text-align: center;">these poor fellas stood there like this for soooooo long. you can tell by the guy in the middle that it was pretty tiring. they each looked up like that from time to time.</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2009/10/bw_20091002_006.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2009/10/bw_20091002_006_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p style="text-align: center;">little guy watching the soldiers with their flags suffer.</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2009/10/bw_20091002_007.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2009/10/bw_20091002_007_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p style="text-align: center;">there i stood&#8230; completely locked in by the crowd and barely able to move. and before i even realized King Albert flashed by in his &#8220;pope mobile like&#8221; jeep. i didn&#8217;t see him coming, so i quickly had to guess at the correct camera settings et voilà&#8230; still a miracle that i was able to take a picture, as it all happened so fast.</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2009/10/bw_20091002_008.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2009/10/bw_20091002_008_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p style="text-align: center;">cropped to square format. looks better this way&#8230; <br />somehow wished i had such a nice chess pattern on my ass though :(</p>
<p style="text-align: center;">
<a href="http://blog.bertwynant.net/img/2009/10/bw_20091002_009.jpg" target="_blank"><img src="http://blog.bertwynant.net/img/2009/10/bw_20091002_009_thumb.jpg" alt="" border="0" /></a></p>
<p>&nbsp;</p>
<p style="text-align: center;">there&#8230; my first roll with the Mamiya 7II. i especially used slide film to check how accurate the light meter(center-weighted, not ttl) was. i&#8217;m so used to ttl metering, but exposure was pretty accurate *yay*! i just love my Mamiya 7II!</p>
<p>&nbsp;</p>
<p style="text-align: center;">ps:  i excluded one picture because it was completely unsharp. sometimes i get too enthusiastic and then i tend to forget that i&#8217;m taking pictures with a rangefinder&#8230; and i simply forget to focus *n00b* :&#8221; )</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p style="text-align: center;">cheers.<br />bert</p>
<p>&nbsp;</p>
]]></content:encoded>
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		<slash:comments>6</slash:comments>
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