Author Topic: f1.4 vs f1.7  (Read 6455 times)

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Offline grplayer

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f1.4 vs f1.7
« on: October 02, 2008, 05:48:48 AM »
Is there a noticeable difference between f,1.4-f.17???

im looking at getting a second hand 50mm f1.7 minolta, i was just wondering would it be worth the extra money in getting sony's newer 50mm f1.4?
« Last Edit: October 02, 2008, 06:28:20 AM by grplayer »
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Offline fother

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Re: f1.4 vs f.17
« Reply #1 on: October 02, 2008, 05:57:08 AM »

dollar for dollar, I'd suggest that the 50 / 1.7 is better value than the 50 / 1.4. I guess in part it depends on how comfortable your budget is.

The 50/1.7 is a (usually) very affordable lens, and great value for money. Lately they've been selling for surprisingly high prices.

The 50/1.4 is a step up, but also quite a step up in price.

I'm actually quite interested to see how the responses flow on this one - might be varied opinions....

Offline Dr.Theo

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Re: f1.4 vs f.17
« Reply #2 on: October 02, 2008, 06:15:33 AM »
i like 1.4 mmmmmmmm
The first step is admitting you have a problem.
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Offline steve

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Re: f1.4 vs f1.7
« Reply #3 on: October 02, 2008, 09:12:25 AM »
Hi
I have a mint 1.7 from ebay and it is very sharp is the 1.4 worth double the price???

  Regards Steve.

Offline tpe

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Re: f1.4 vs f1.7
« Reply #4 on: October 02, 2008, 10:07:40 AM »
I have had both and at no time did i find that the 1.4 was worh double the price. In fact i got a higher percentages of keepers with the 1.7 possibly because i didnt shoot at 1.4. Shooting at 1.4 really leaves too much to luck to be reliable.

tim

Offline JimA

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Re: f1.4 vs f1.7
« Reply #5 on: October 02, 2008, 06:23:58 PM »
I have both

I don't think the 1.4 is worth double, it is a lot better build - much heavier - and better below f2 but from f2.8 down its difficult to tell the difference

I paid 50% more for the 1.4 but certainly wouldn't pay more

Bluebear

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Re: f1.4 vs f1.7
« Reply #6 on: October 02, 2008, 07:28:19 PM »
I have never had the 1.7 but do have the 1.4 and it's a fantastic lens.  I bought it new and love it - it always goes where my camera goes!

Offline Bill

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Re: f1.4 vs f1.7
« Reply #7 on: October 03, 2008, 12:42:15 AM »
I have had several 1.7s plus a 1.4 RS.  The 1.7s are good, cheap lenses.  At f/2.8 they are very sharp.  The 1.4 is just plain better.  At f/2 it is at least as sharp as the 1.7 at f/2.8, plus it has beter bokeh and colors.  The older 1.4s are supposed to focus more slowly than the 1.7s due to the larger, heavier and higher number of elements.  My 1.4 RS was new when I bought it a few years ago.  It was very fast focusing.  I sold it to a member here.

You can see my current system at the bottom of the post.  Of ALL of the lenses that I owned in the past (including an incredible 28/2), the only one I am still considering buying again is the 50/1.4.  I will opt (if I do buy one) for the Sony version.  It looks to have slightly less flair, still great Minolta colors and bokeh, and may be a touch faster focusing (only because of the better digital coatings which reduce flair and increase contrast).  The Sony is also the only version that has ADI distance intergration.

Just my opinion.  I hope it helps.  :-)

Bill
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DonSchap

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Re: f1.4 vs f1.7
« Reply #8 on: October 03, 2008, 04:06:18 AM »
I have owned, up until recently, the Minolta 50mm f/1.7, the Minolta 50mm f/1.4 and the SONY 50mm f/1.4



I sold the f/1.7 ... so you figure it out.

Comparing the Minolta f/1.4 (if you could get one) against the SONY f/1.4 ... the SONY is a tad bit sharper, overall.  That swing to f/1.4 from f/1.7 is just hard to believe.  If I had not witnessed it, I would not believe the difference in exposure level.

Now, remember ... I have BOTH f/1.4s ... I bought the SONY because it is sharper, faster and has the eight pin contacts.  It costs more ... but, it flat out delivers in low light.  If you have only one to buy ... that would, hands down, be my choice.

Good luck with your lens choice.
« Last Edit: October 03, 2008, 04:09:13 AM by DonSchap »

Offline winjeel

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Re: f1.4 vs f1.7
« Reply #9 on: October 05, 2008, 02:54:12 AM »
Interesting
JapanesePhotos.Asia; Some basic photographic how to's.
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Offline Stef.

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Re: f1.4 vs f1.7
« Reply #10 on: October 05, 2008, 03:48:26 AM »
Well- the 1.4 just gives you one more f stop in speed and this is like switching your camera to perhaps 400 from 200 instead of 800. Eventhough you might not use it that much if you can afford it I would go for the 1.4 purely for the fact that if you really need it you have the speed. On the other hand with better ISO performancde in the future this might become less relevant?
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Offline Dr.Theo

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Re: f1.4 vs f1.7
« Reply #11 on: October 05, 2008, 05:31:45 AM »
stef it may become a bit less rellevant for speed but there is no repacement for dof and bokeh
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Re: f1.4 vs f1.7
« Reply #11 on: October 05, 2008, 05:31:45 AM »