Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
10-02-2006, 05:24 AM   #1
New Member




Join Date: Sep 2006
Location: Lebanon
Posts: 6
Pentax FA 50mm f1.4 lens

I have been reading excellent reviews for the FA 50mm f1.4 lens. I need such a lens to shoot in low light places. But with the 1.5 crop on DSLRs won't it be too narrow to use in places like churches, where you want to take a fairly wide image?
N.B: Do you know anything about the performance of the PENTAX SMC FA 43mm/F1.9 LIMITED? I've been told it is a great lens. How does it compare to the 50 mm f 1.4?

10-02-2006, 07:00 AM   #2
Ole
Administrator
Ole's Avatar

Join Date: Sep 2006
Location: Copenhagen, Denmark
Photos: Gallery | Albums
Posts: 3,792
You should prabably consider something wider than even the 43mm. 24mm or 20mm. I have found 24mm quite useful (I use ISO 1600 and the 24-90mm f/3.5-4.5 zoom for curch photography).

You may still want the 50mm for capturing details.

On this site you'll find user opinions of Pentax lenses:

http://stans-photography.info/
10-02-2006, 08:33 AM   #3
Site Supporter
Sluggo's Avatar

Join Date: Sep 2006
Location: Ames, Iowa
Photos: Gallery | Albums
Posts: 542
The crop factor changes the function of the FA50-1.4 from a good general purpose lens to a good portrait lens. I just got mine a week ago (was one of the last to get one before all the stores ran out, apparently) and love it to pieces.

In addition to Ole's suggestions, in my opinion the kit 18-55 zoom does very well down to about the 21mm range when you have enough light. At 18mm you can get some vignetting, at least with a filter attached.
10-02-2006, 05:52 PM   #4
Veteran Member
joele's Avatar

Join Date: Sep 2006
Location: Melbourne, Australia
Photos: Gallery
Posts: 1,309
I use the FA50/1.4 as a portrait lens and use the FA35/2 as I would the 50 on film...

The FA35/2 is an excellent lens in all respects..

10-03-2006, 02:14 AM   #5
New Member




Join Date: Sep 2006
Location: Lebanon
Posts: 6
Original Poster
QuoteOriginally posted by Ole Quote
You should prabably consider something wider than even the 43mm. 24mm or 20mm. I have found 24mm quite useful (I use ISO 1600 and the 24-90mm f/3.5-4.5 zoom for curch photography).

You may still want the 50mm for capturing details.

On this site you'll find user opinions of Pentax lenses:

http://stans-photography.info/
Well thanks for the help Ole, but i've been told that i need a lens with an aperture of at least 2 with 1.4 even better for low light. what do you think? as for 24mm zoom with ISO 1600, you get lots of noise don't you? Thanks for your help, i really value it.
10-03-2006, 03:48 AM   #6
Veteran Member




Join Date: Sep 2006
Location: Melbourne, Australia
Posts: 423
Hi zizo

QuoteOriginally posted by zizo Quote
Well thanks for the help Ole, but i've been told that i need a lens with an aperture of at least 2 with 1.4 even better for low light. what do you think? as for 24mm zoom with ISO 1600, you get lots of noise don't you? Thanks for your help, i really value it.
The reason you need a f2 or bigger aperture (eg f1.7 or 1.4) is that a bigger aperture will allow more light in so the shutter speed will be faster, to reduce camera shakes caused by hand shakes. It will not introduce noise, or at least that's what I think. Under-exposing your shot will introduce more noise.

cheers
Kenny
10-03-2006, 06:17 AM   #7
Ole
Administrator
Ole's Avatar

Join Date: Sep 2006
Location: Copenhagen, Denmark
Photos: Gallery | Albums
Posts: 3,792
QuoteOriginally posted by zizo Quote
Well thanks for the help Ole, but i've been told that i need a lens with an aperture of at least 2 with 1.4 even better for low light. what do you think? as for 24mm zoom with ISO 1600, you get lots of noise don't you? Thanks for your help, i really value it.
Ideally yes, you go with a fast lens. But the good thing about the DSLR is that you can bump up the ISO to 1600, even 3200 in lieu of using a faster lens. You can remove the noise in the photoediting software. Of course, you don't get quite the same quality as at ISO 200. On the other hand, with the fast lens you won't get any depth of field at f/1.4 and you will also lose some resolution.

I do have the 50 f/1.4; most often I use the 24-90 zoom at 24mm where it is a f/3.5 lens and bump the ISO.

It's really up to you. But saying that you "need" a fast lens is not quite right, you can make do with what you have, and then, perhaps when you from using the zoom get some experience in what focal length is your favorite, buy the right prime for you.
10-14-2006, 07:42 PM   #8
Inactive Account




Join Date: Sep 2006
Location: Lone Tree, Colorado, USA
Posts: 77
<<In addition to Ole's suggestions, in my opinion the kit 18-55 zoom does very well down to about the 21mm range when you have enough light. At 18mm you can get some vignetting, at least with a filter attached.>>

I took the suggestion of others and run my DA 18-55 at F/9 and seem to have cured the vignetting problem peculiar to that lens with a fairly wide open aperature.

Lucky Sky

Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
50mm, f1.4, fa, fa 50mm f1.4, k-mount, lens, pentax, pentax fa 50mm, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Which lens is better Pentax 50mm 1:2 Rikenon 50mm F2.0 mesuper Troubleshooting and Beginner Help 16 06-14-2012 11:27 AM
For Sale - Sold: RARE PENTAX LENS k 28MM F2, k 50MM F1.2 FA 35MM F2, FA 50MM Macro, Pouc (Worl rajubhai55 Sold Items 11 06-21-2011 03:27 PM
For Sale - Sold: PZ-1 SE; Pentax-A 50mm f/1.7 lens and 50mm f/2; K1000 SE (Worldwide) Nick Siebers Sold Items 8 11-20-2010 08:51 PM
Pentax SMCP-FA 50mm f/1.4 Lens or Sigma 50mm f/1.4 EX DC HSM? NicK10D Pentax DSLR Discussion 7 06-23-2010 06:21 AM
For Sale - Sold: Pentax K-X (black) with kit lens and F 50mm f/1.7 lens tangus Sold Items 3 01-06-2010 09:42 AM



All times are GMT -7. The time now is 02:50 AM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top