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Godspell: The seventies hits the South-East…
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Got a new toy last week – an old OM System 55mm f/1.2.
These are my first efforts in using it, a few sly shots from the
orchestra pit…400 ISO, f/1.2, 1/320s
400 ISO, f/1.2, 1/200s
400 ISO, f/1.2, 1/160s
Whole new experience for me, trying to focus manually on moving subjects
at such a large aperture… :shock:Rob…
Well it looks like you’re pleased with that-
Focusing a 50 1.2 on a crop sensor isn’t easy,
at least not on mine-These look nicely focused-
did you have to throw away any?That guy in the first looks like he’s been dressed for the wrong musical-
The Phantom of the Technicolour Lion King,
or something-Looks good-
especially on your 50% crop-j
Yep..you certainly seem to have focused perfectly in these two Rob. So no complaints there…spot on with the subjects eyes in No.2.
And all while playing the guitar as well!!
Nothing short of miraculous… :wink: :wink:
You seem to have a big DoF for having shot at f1.2, how does that work?
S.
Thanks to all for the comments…
Joseph: Yup, very pleased with it, though very difficult to focus accurate
wide open. First time using it and a lot of shots discarded once I was able to
view them at full res.Phantom of the Technicolour Lion King
Tee hee, I’ll be passing that one on…
Robbie: Miraculous that the MD didn’t fire me for missing cues and forgetting to
change from electric to acoustic at the appropriate times :oops: Still, I got my new
toy and got to try it out, so no complaints…Sinead: Tricky question, and I’m neither knowledgeable nor articulate enough to
explain it well, but I’ll attempt something in my own clumsy way. Depth of field is dependent
not only on aperture, but also on focal length and distance; distance between you and
your subject, and also distance between your subject and the background or background
objects. For instance, if I was to photograph you using this prime wide open at f/1.2 at a
distance of half a metre with a big green bush another half a metre behind you, I might
get you perfectly in focus but the background will just be a complete green blur. However,
if I step back a metre, the background will begin to take some shape – in other words,
the depth of field will increase away from my focal point. If I step back four or five metres,
you will see the shapes of individual leaves, out of focus but with some definition. I’m sure
there is probably some arcane formula or table that explains the phenomenon in a more
scientific/mathematical manner. Perhaps the knowledgeable and articulate jb7 might be
better equipped to supply a more thorough and meaningful explanation?Rob.
Surely you mean curt and unhelpful-
The two things which influence depth of field are magnification and aperture-
its a bit of a misconception that it is influenced by focal length-
perhaps because using a longer focal length increases the magnification,
from the same shooting distance-
and gives the appearance of narrowing the depth of field-I’m doing some tests involving depth of field at the moment,
or more precisely, the rendition of bokeh with silly lenses-
as soon as I’ve got something to show, I’ll post some pictures-However, as a guide, the smaller the format, the more depth of field you will appear to have-
because your original will be magnified more for viewing compared to a picture taken on a larger format,
where more magnification is achieved by using a longer taking lens-Its a minefield to explain, and probably not even necessary to know if you only use one format-
although macro shooters, in particular, know the benefits of keeping the sensor small…j
Ok….. I sometimes ask questions that I think I want to know the answer
to (and, really I do…… I am a total nerd….. not nearly as much as you
two though, tee hee) and then when I hear the answer I realise I would
have been happy with an answer like “because I said so” or something like
wise.. (laughing to self! :P )Rob, nice picture you paint there, taking my portrait in front of a big
green bush!!S.
wow i was gonna say amazing noise control on the pics, til i realised the apeture, so…nice lens :-) and lovely images
Ahh, it all becomes clear… Thanks Joseph. Curt and unhelpful
works well here… ;)Sinead, I’ll drop in next time I visit Warrenpoint. I’ll even bring
a big green bush…Thanks Meleka.. Melki.. Melod.. Mel..
MeleKalikimaka! What a name to try to type! Next time I’ll make
sure I’m sober before I attempt it :)Rob.
Let me know next time your in town Rob, but I’m not standing in
front of any green bush for you :wink:Do you know there is a really good Blues Festival coming up soon
in Warrenpoint? 2’nd bank holiday w’end, I’m really looking forward
to it!Sinead.
Whatever about the green bush, you nailed those shots. Sharp faces, hands a little OOF. Perfect to my eye.
Merv.
Thanks a lot Merv. Pretty pleased with my first attempts with
this particular glass…Rob.
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