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05-23-2012, 06:07 AM   #31
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QuoteOriginally posted by RMabo Quote
The Canon EF 50 f/1.8 is indeed from ancient times, it is a pre-historic lens. It has paid for itself a long time ago.
The Pentax new 50 f/1.8 is a new construction, new optical design, and Pentax wants to get their development money back. Plus the optical design is likely to be very good, if we judge from the new 35 f/2.4. Optical quality like the Limiteds but in a plastic body.

I believe that the problem is that people just compare focal lengths, aperture and price - and not optical quality. Do you want a 50 just because it is cheap, or do you want one because it is good? If you want a cheap 50 then you have this in the 18-55 kit zoom...
Judging from the 35/2.4, the build quality will also be nicer than the extremely cheap quality of the canon. Add rounded aperture blades to that, and the Pentax looks like the better deal to me!

05-23-2012, 06:52 AM   #32
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You all forgot something. To my very big surprise, the Canon 50/1.8 is, mark my word, louder, than the FA50/1.4 (and any screwdriven AF lenses I know btw). Way way louder.
05-23-2012, 07:20 AM   #33
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QuoteOriginally posted by RMabo Quote
The Canon EF 50 f/1.8 is indeed from ancient times, it is a pre-historic lens. It has paid for itself a long time ago.
The Pentax new 50 f/1.8 is a new construction, new optical design, and Pentax wants to get their development money back. Plus the optical design is likely to be very good, if we judge from the new 35 f/2.4. Optical quality like the Limiteds but in a plastic body.

I believe that the problem is that people just compare focal lengths, aperture and price - and not optical quality. Do you want a 50 just because it is cheap, or do you want one because it is good? If you want a cheap 50 then you have this in the 18-55 kit zoom...
Canon Direct Store - Standard & Medium Telephoto Lenses

Canon has a cheap 1.8 and the more expensive and much larger 1.4.

Pentax is a new 1.8 that splits the price difference and probably has better build quality and maybe flare control (a Pentax hallmark). Is that worth $124 more?

The market will have the final word. Personally, I think Pentax just released a $189 50/1.8 for APS-C.
05-23-2012, 07:34 AM   #34
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I will buy this lens, 'coz I need it now after I sold FA50/1.4 many years ago. I need lens between 43 and 77 mm.
USD250 is not a problem for me at all. And I hope the price will stay at the level not above USD200 in several months.
I also hope that DA50/1.8 will be sharper than FA50/1.4 and with good bokeh and colours.
DA35/2.4 is sharper than FA31, by the way...)

05-23-2012, 07:48 AM   #35
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I will likely buy this as well. Street price will be lower (at least in Canada) probably selling for 219 or so, i was actually hoping this would be out by summer so i could take it on vacation (I'll pick up the DA35 2.4 at the same time). If it's FF as BH hints even better (that was the one thing holding me back) looks like it will be a nice lens (the Canon most definitely is not crap build, ugly bokeh and of course it falls apart) The cheap nikon 50 1.8 G is in this price range too. (though it's sdm or whatever it is Nikon calls it - because their entry cameras can't use the screw drive on the previous D model)
05-23-2012, 10:12 AM   #36
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Being full frame would be no advantage to me as all the film cameras I use are ones that either need an aperture ring or enter straight into program mode if the lens is set to A.

I will be interested to see how it performs though. Maybe I'll get lucky as I did with the DAL 35 and get one for 65GBP...
05-23-2012, 10:25 AM   #37
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QuoteOriginally posted by Jonathan Mac Quote
Being full frame would be no advantage to me as all the film cameras I use are ones that either need an aperture ring or enter straight into program mode if the lens is set to A.

I will be interested to see how it performs though. Maybe I'll get lucky as I did with the DAL 35 and get one for 65GBP...
FF is more of an advantage for me when a digital comes. for film none of my current bodies are AF in any case and I have loads of 50-55 i can use on film (at least a third of my lenses are 50-55 i think)
65 gbp would be an excellent price.
the 35 runs 195-199 in Canada (versus the 219 in the US) SO I'm guessing 229 will be where it settles (I will offer my dealer a lower price - $400 for the pair and see what flies - I know one guy who will deal for cash, he's just not who i like to buy from)
05-25-2012, 07:10 AM   #38
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QuoteOriginally posted by hegedus Quote
I don't know why should a wide lens like 18mm also be very bright? Why not f4? Do you need it for bokeh? At 18mm you can hardly speak about background blur. The shutter speed at 18mm can be slow, combined with SR can give you decent results even at 1/15s. Also, here is a modern sensor ISO sensitivity, which gives you quite a lot of light boost. So why f2.8?
Pentax designed an FA 18/2.8 about ten years ago. It never went to the market but got so near it that the distributors got the productnumber so that they could preorder. It would have been very expensive; thats probably why it was axed. The old K 18/3.5 was an expensive lens in its time....

05-27-2012, 11:04 AM   #39
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Compare it to the Nikkor 50 1.8G AFS instead, price and optical.

I bet the Pentax will be as sharp if not sharper, and have a more pleasing bokeh and rendition than the Nikkor. Some other things are in favor to the Nikkor though
05-27-2012, 01:09 PM   #40
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05-28-2012, 12:17 PM   #41
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QuoteOriginally posted by beholder3 Quote
The Canon lens... is here anyone who likes the concept of autofocus?

Check the table here: Traumflieger: Infos zum Objektiv-Qualit
Row 45. The column "Phase" reflects, how well the lens autofocusses with phase detection AF while "Kontrast" says how well the lens focusses using liveview contrast detection. They took 5 pictures each and checked against maximum resolution/sharpness possible with this lens.

Average 54,9% on the supposedly good Canon PDAF system...
Even 61% on contrast detection AF...
Bwahahaha. That is precision manufactured glass.
I bet the mechanics are handcut piece by piece by happy children somewhere in China.
that and you need to buy a new one every year because they keep falling apart
yep money well spent.
05-28-2012, 12:56 PM   #42
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QuoteOriginally posted by the swede Quote
Compare it to the Nikkor 50 1.8G AFS instead, price and optical.

I bet the Pentax will be as sharp if not sharper, and have a more pleasing bokeh and rendition than the Nikkor. Some other things are in favor to the Nikkor though
I wouldn't bet on it. Pentax lenses to have 'something', but I'm not sure what it is. Nikkor lenses are very sharp however, and I'm sure the bokeh will be matched between the two. The Nikkor is a much better build with many more features. I doubt either is optically superior, but the Pentax has the advantage of being K-mount, so if you have a Pentax camera you don't have a choice.

I whined at first, but then I realised I love my DA 35mm f/2.4 despite the build and lack of features compared to the Nikkor 35mm f/1.8 which is apparently optically superior. I realised I couldn't care less, I enjoy using the DA 35 for the price, and that's what's important really. I haven't found a Pentax lens I didn't enjoy using, even when the competition was considered.
05-28-2012, 03:02 PM   #43
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QuoteOriginally posted by RMabo Quote
The Canon EF 50 f/1.8 is indeed from ancient times, it is a pre-historic lens. It has paid for itself a long time ago.
The Pentax new 50 f/1.8 is a new construction, new optical design, and Pentax wants to get their development money back. Plus the optical design is likely to be very good, if we judge from the new 35 f/2.4. Optical quality like the Limiteds but in a plastic body.

I believe that the problem is that people just compare focal lengths, aperture and price - and not optical quality. Do you want a 50 just because it is cheap, or do you want one because it is good? If you want a cheap 50 then you have this in the 18-55 kit zoom...
Are we sure the DA50 is a 'new optical design'? I would bet my botty it's got the same optical formula as the FA1.7. (And therefore going back all the way to the M1.7. Enhanced with new aperture blades and slightly slower, sure.The number of groups/elements is the same.
05-28-2012, 08:30 PM   #44
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QuoteOriginally posted by ihasa Quote
Are we sure the DA50 is a 'new optical design'? I would bet my botty it's got the same optical formula as the FA1.7. (And therefore going back all the way to the M1.7. Enhanced with new aperture blades and slightly slower, sure.The number of groups/elements is the same.
Yeah I suggested the same a while back, but no one really knows. If true, it's not a bad thing, since that's one of the best 50mm lenses ever.
05-28-2012, 08:45 PM   #45
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Why produce a cheap quality lens just to offer a dirt cheap prime option? The 35/2.4 is an excellent example of a top IQ lens with a reasonably durable build that the new 50 will emulate no doubt. Worth the investment. After all, you'd just be paying $250 once, and you have the lens for a lifetime.
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