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08-16-2010, 03:28 PM   #1
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Supersize me?

I recently picked up my brother's Canon 1D with 70-200/F2.8 zoom and I nearly broke my back! That combo is a beast! And while it's got some clear advantages, there's no way I could take something like that on a motorcycle or hiking trip.

I also took some photos of his Canon 1D with a Sigma 50/F1.4 next to my MX with 50/F1.7. Take a look:


Supersize me! by john m flores, on Flickr


Supersize Me! by john m flores, on Flickr

I knew the MX was small by today's standards, but that Canon makes it look like an Auto 110. OMG!

Does anyone else have photos of Pentaxes besides today's modern behemoths?

08-16-2010, 03:40 PM   #2
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Yep... It all comes down to what do you want to do with it.. Not the same type of compare (format size) but to all those who think the K10/K20 are tanks... (I've shown this before)



Same FL lenses.

08-16-2010, 03:40 PM   #3
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can anyone tell me why in the world that 50mm has to be so big? AFAIK both lenses cover the same film plane
08-16-2010, 03:43 PM   #4
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QuoteOriginally posted by Pablom Quote
can anyone tell me why in the world that 50mm has to be so big? AFAIK both lenses cover the same film plane
HSM and OS and f1:1.4?



08-16-2010, 03:45 PM   #5
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QuoteOriginally posted by Pablom Quote
can anyone tell me why in the world that 50mm has to be so big? AFAIK both lenses cover the same film plane
It's also sharp wide open, same characteristic as the DA*55, which is also much larger than its less-than-sharp wide open older brother FA 50/1.4.
08-16-2010, 04:02 PM   #6
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QuoteOriginally posted by Pablom Quote
can anyone tell me why in the world that 50mm has to be so big? AFAIK both lenses cover the same film plane
Because Sigma primes are always too big?
08-16-2010, 04:06 PM   #7
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QuoteOriginally posted by Pablom Quote
can anyone tell me why in the world that 50mm has to be so big? AFAIK both lenses cover the same film plane
The Canon 1D is APS-H. It's smaller than 35mm FF, but bigger than APS-C.

Besides that, most current Sigma lenses are oversized like this.
08-16-2010, 04:26 PM   #8
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Pentax cameras really only look big compared to the consumer nikons and canons... otherwise they are fairly compact for dslr's.

I was playng with a d5000 the other day. Very nice and small, but some of the features I took for granted with my k20d were completely absent from d5000, and i could not get into a flow. I think the Pentax flagships strike a good balance between built-in features and and size.

08-16-2010, 08:16 PM   #9
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QuoteOriginally posted by paperbag846 Quote

I was playng with a d5000 the other day. Very nice and small, but some of the features I took for granted with my k20d were completely absent from d5000, and i could not get into a flow.
Such as? Just curious...
08-16-2010, 10:12 PM   #10
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As for the flow, some of it is habit (no green button ), but the two big ones were no easy external way to switch up the ISO, and the speed limitation of only one clickwheel (i know it's not a big deal, but the interface felt cumbersome compared to what I'm used to...)

really what I was talking about with respect to the size of the k20d / k7 is the sealing and in body stabilization. I don't really think you see many cameras with those features that are much smaller.

PS not commenting on the quality of the d5000, it takes great pictures, just commenting on the size comparison. I personally think you an take the same picture with both, but i like the feature set of the k20d and can understand why that would lead to a larger body.
08-16-2010, 11:58 PM   #11
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QuoteOriginally posted by Pablom Quote
can anyone tell me why in the world that 50mm has to be so big? AFAIK both lenses cover the same film plane
Have a look here : https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/89111-difference.html#post906389
08-17-2010, 07:53 AM   #12
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QuoteOriginally posted by Pablom Quote
can anyone tell me why in the world that 50mm has to be so big? AFAIK both lenses cover the same film plane
The Sigma is f/1.4 vs. f/1.7 AND Sigma designed the lens to have such a large front element so as to reduce vignetting wide open. Oh, and the HSM motor/electronics :-)

Canon folks LOVE the "Sigmalux", with many folks prefering it over the Canon 50mm f/1.2L.
08-17-2010, 07:54 AM   #13
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QuoteOriginally posted by alohadave Quote
The Canon 1D is APS-H. It's smaller than 35mm FF, but bigger than APS-C.

Besides that, most current Sigma lenses are oversized like this.
Yes, but both lenses are required to cover the full 35mm frame. Even if you mount the Sigma on a APS-H or APS-C, the lens is still projecting a "full" image circle.
08-17-2010, 08:21 AM   #14
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Thanks for posting the pics, John. The side-by-side shot made me laugh. It also reminded me of what a little jewel the MX is.
08-17-2010, 10:44 AM   #15
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Those differences can be great and make some lovely pictures. I took one last year from my old Nikon and Auto 110 set.

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