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Old 10th of April 2006 (Mon)   #1
Mike Bell
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Default Canon EF 28mm f/1.8 USM

Like lots of owners of 1.6 crop cameras I would like to own a small fast prime lens with the equivalent FOV of a 'normal' focal length on full frame. The Canon EF 28 f1.8 seems to fit the bill and gets good reviews but I can find very few example shots.

If you have this lens show us what it can do!
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Old 10th of April 2006 (Mon)   #2
Double Negative
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Default Re: Post your EF 28 f1.8 photos here!

http://www.pbase.com/cameras/canon/ef_28_18u
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Old 10th of April 2006 (Mon)   #3
Bosphorousman
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Default Re: Post your EF 28 f1.8 photos here!

Ok,
Check here:http://www.pbase.com/bosphorousman/inbox

Tip:
If you're using a 1.6 sensor camera and focusing at wide apertures, larger than f3.5 - f3.0, then you need to turn the MF ring to the right past the point of focus. Then press the shutter half way to zero in on your subject. This will give you more accurate focusing with the Digital Rebels. The 20D is supposed to have better focusing with larger aperture settings.

It's a great little lens that's on my camera most of the time (300D).
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Old 10th of April 2006 (Mon)   #4
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Default Re: Post your EF 28 f1.8 photos here!

ill try to get ya some random shots with 100% crops if someone doesnt get to it first. busy school schedule this week =X
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Old 10th of April 2006 (Mon)   #5
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Default Re: Post your EF 28 f1.8 photos here!

Search for posts by Drisley.......he used to have this one and posted some very good shots with it.....
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Old 12th of April 2006 (Wed)   #6
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Default Re: Post your EF 28 f1.8 photos here!

heres some pics from my 28mm that i took recently unprocessed except shrunken. i guess to show off the nice contrast and colors?
can someone enlighten me on what the easiest way to do a 100% crop?
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File Type: jpg IMG_3388 (Medium).JPG (93.2 KB, 20049 views)
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Old 12th of April 2006 (Wed)   #7
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Default Re: Post your EF 28 f1.8 photos here!

Quote:
Originally Posted by kaitanium
heres some pics from my 28mm that i took recently unprocessed except shrunken. i guess to show off the nice contrast and colors?
can someone enlighten me on what the easiest way to do a 100% crop?
Nice shots - contrast and colours very good, but I still wonder about image quality after reading more reviews.

I would appreciate it if you could post some 100% crops - just crop the shot down to a rectangle of about the right size (max of 800x533 for a landscape format) and then save that as a file. Do not resize it - just do modest jpeg compresion and post the whole file - that is a 100% crop. I do it in Paint Shop Pro but any software should do this. Crops from both the centre and sides are best to show lens performance. Just make sure the cropped portions are in focus and there is no motion blur.
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Old 12th of April 2006 (Wed)   #8
Livinthalife
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Default Re: Post your EF 28 f1.8 photos here!

i thought it was 284x244
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Old 12th of April 2006 (Wed)   #9
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Default Re: Post your EF 28 f1.8 photos here!

Quote:
Originally Posted by Livinthalife
i thought it was 284x244
Why? The forum guidelines say max of 800 pixels on the longest side so any 100% crop below 800x799 would be 'acceptable'. I agree that you can generally make a judgement of IQ on a smallish 100% crop of the kind of size you quote. Several small crops from different parts of the image is more useful than just a large central crop. The crucial factor is not the size of the cropped image, it is that they are 100% crops i.e. no resizing.

That is assuming you can ever make such a a judgement using a monitor screen - the ultimate test I suppose is a print at 300 pixels per inch or so, isn't it? Am I right there?

So much to learn!
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Old 12th of April 2006 (Wed)   #10
Mike Bell
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Default Re: Post your EF 28 f1.8 photos here!

Quote:
Originally Posted by Bosphorousman
Ok,
Check here:http://www.pbase.com/bosphorousman/inbox

Tip:
If you're using a 1.6 sensor camera and focusing at wide apertures, larger than f3.5 - f3.0, then you need to turn the MF ring to the right past the point of focus. Then press the shutter half way to zero in on your subject. This will give you more accurate focusing with the Digital Rebels. The 20D is supposed to have better focusing with larger aperture settings.

It's a great little lens that's on my camera most of the time (300D).
Thanks for the link - nice shots taken in just the kind of situations I would envisage - low light, not much space to move back etc.

Would you say that the IQ from this lens is better than your zoom at the same focal length and aperture? Which zoom do you have BTW?
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Old 12th of April 2006 (Wed)   #11
René Damkot
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Default Re: Post your EF 28 f1.8 photos here!

Easiest way to get a 100% crop, is to set *canvas* size to 800x800px in PS I think...
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Old 12th of April 2006 (Wed)   #12
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Default Re: Post your EF 28 f1.8 photos here!

Mike - you may also want to consider the Sigma 30mm f/1.4 - fStopJojo swears by it.
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Old 12th of April 2006 (Wed)   #13
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Default Re: Post your EF 28 f1.8 photos here!

il follow your 800x533 crop when i get home.
those two pictures have varing f-stoppage and iso so sharpness could vary.
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Old 12th of April 2006 (Wed)   #14
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Default Re: Post your EF 28 f1.8 photos here!

Quote:
Originally Posted by goatee
Mike - you may also want to consider the Sigma 30mm f/1.4 - fStopJojo swears by it.
I have researched that lens as well. On paper it is ideal - f1.4 and closest to the magic 50/1.6 focal length. The trouble is - for every photographer who swears by it there are are two who swear at it! It really puts you off to hear of guys sending their lenses back - often more than once - and still not getting a good copy.
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Old 12th of April 2006 (Wed)   #15
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Default Re: Post your EF 28 f1.8 photos here!

Here is a 100% crop tutorial from the Raw, PP forum. Look toward the end of the page.

http://photography-on-the.net/forum/...t=34606&page=3

For a CS2 example with screen shots see the next thread, again toward the end.

http://photography-on-the.net/forum/...=152215&page=2
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