Search results for 'back focus' - page 11
What does the Lens lettering mean, (+ a SFXn lens question)
SMC (Super-Multi-Coated) Pentax lenses with suffixes such as -F and -FA will be autofocus and suitable for your needs. There are f1.7 and f1.4 versions and I would suggest they will be better than the Sigma lenses. Macro lenses are also available in 50mm, but are usually f2.8 or even f4 but very ...
Posted by johnriley on 09/01/2005 - 07:14
What does the Lens lettering mean, (+ a SFXn lens question)
hey thanks again John. Since my minni zoom sigma allready has a 1.2 macro, (and I found out that was the sigmas), i'm gona just get a dedicated 50 mm. Right now the smallest things I'm shooting are leaves & flowers up close anyway. I been doin some net searching tonight with the help of ...
Posted by Anonymous on 09/01/2005 - 08:07
What does the Lens lettering mean, (+ a SFXn lens question)
The SMC Pentax-FA lens is autofocus, but it does have a manual focus ring that you can use if you wish. The SMC Pentax-A lenses are manual focus and are available in f1.2, f1.4, f1.7 and f2 versions. The f1.2 will be very expensive. The optical design of all these lenses is very similar, and a...
Posted by johnriley on 09/01/2005 - 08:40
What does the Lens lettering mean, (+ a SFXn lens question)
Ok then if the smc P-FA 50mm F1.4 has a focus ring it's what i want. cause I'll probably use it both ways. On the Pentax site I saw what looked like a turnable ring, but because it had no raised bumps I had wonderd. I probably couldn't afford the 1.2, and am not a profesional so don't really need i...
Posted by Anonymous on 09/01/2005 - 23:11
Newer Pentax Camera With Older M Lenses
I am currently using a Pentax MX with several M type manual focus lenses. Will these lenses work with the newer Pentax cameras such as the *ist, ZX-L, ZX-7, ZX-60 and such? I realize they will not autofocus. Thanks for your help,
Posted by bhaubold on 17/12/2004 - 00:10
Newer Pentax Camera With Older M Lenses
I am currently using a Pentax MX with several M type manual focus lenses. Will these lenses work with the newer Pentax cameras such as the *ist, ZX-L, ZX-7, ZX-60 and such? I realize they will not autofocus. Thanks for your help, Hi Bob All lenses will fit and allow you take the photo, how...
Posted by mattie on 17/12/2004 - 07:40
PArts for an old mv
I have just been given an old Pentax mv camera, unfortunately the Film Rewind Crank and the Film Rewind Knob / Back Cover Release is missing, the spindle to screw the missing part on is still intact though. Does anyone know whereI can find a replacement for this? Preferably it would be an au...
Posted by jaxx on 24/12/2004 - 20:04
PArts for an old mv
You might try Pentax UK for the parts, or any of the repairers advertising in the photo magazines, or on this site. Any Pentax K fit (i.e., bayonet fit) lens will fit your camera and be useable within the linmitations of the body. You will have aperture priority auto exposure available, and manua...
Posted by johnriley on 24/12/2004 - 21:11
PArts for an old mv
ok kim thanks, I'll see how I get on and if i dont find anything I'll get back to you john
Posted by jaxx on 16/01/2005 - 13:06
Can I do this? (Pentax lens with film camera)
You can't go the other way; ie: fit a bayonet lens to a screw camera (unless you take the mount off completely) because the throat of the bayonet lens is too wide. You would not get infinity focus; the lens would become a permanent macro. Also, it is quite likely that the thread on the cine is n...
Posted by George Lazarette on 11/01/2005 - 20:07
Pentax LX problems..will not focus on infinity..Help please?
Hi, Just bought a near mint LX, however none of my Pentax K or M lenses will focus on infinity !!, I have tried another prism and the problem still exists... can anyone advise on the possible fault and repair costs?, the camera also seems to over-expose by a full 2 stops, is this normal for an LX?...
Posted by bretbysteve on 13/01/2005 - 12:08
Pentax LX problems..will not focus on infinity..Help please?
Something is clearly amiss - perhaps someone has replaced the focusing screen and it isn't clicked properly into place, perhaps the mirror is out of alignment, maybe something else. But if simple checks don't reveal an obvious cause, I would send the camera for overhaul. The LX is a very classy c...
Posted by johnriley on 13/01/2005 - 13:47
Pentax LX problems..will not focus on infinity..Help please?
From the sound of it, your LX is exhibiting a fairly common problem due to the mirror "dropping" slightly due to the mirror pad foam being a bit old.. Check out this webpage http://members.ozemail.com.au/~distudio/pentax_lx_problems/ This can affect both infinity focusisng and metering...
Posted by Anonymous on 18/01/2005 - 11:11
Aperture questions about a SFXn
Still fairly new to aperture, and confused by my camera. It's an SFXn, right now with an AF sigma 28 - 80 mini zoom II. 3.5 to 5.6 aspherical lens. I Here's my question I know the camera will automatically control the focus, shutterspeed, and aperture, and I understand the first 2, an...
Posted by fiannor on 14/01/2005 - 08:59
Aperture questions about a SFXn
In program mode, the camera will alter the shutter speed to allow the correct amount of light through the lens for the aperture you have set. You will notice that if you move up one stop (say from f8 to f11), the camera will compensate by halving the shutter speed. Each stop represents half th...
Posted by George Lazarette on 14/01/2005 - 11:29
Aperture questions about a SFXn
Hey thanks for the help George. Speaking of focus depth, in automatic there's a "program depth mode" on my SFXn. I plan to learn the aperture manually but mean time wondered how this mode works. It's suppose to take more in depth focus shots when selected. I use to think it was a double focus,...
Posted by fiannor on 15/01/2005 - 04:02
Aperture questions about a SFXn
Fiannor, I've just pointed my old SFX out of the window at a leaden January sky, and tried the three program modes. Lansdscape mode gave f13.5, normal gave f8, and action gave f3.5. So there is a marked difference. The camera selected a shutter speed of 1/30 in landscape (with the focal le...
Posted by George Lazarette on 15/01/2005 - 10:00
Aperture questions about a SFXn
Hey George about your info on the, "Lansdscape mode gave f13.5, normal gave f8, and action gave f3.5", you listed above. These are focus numbers right? I get them in my camera in either manual aperture, or automatic indepth mode. I thought they were aperture numbers at first, (which I wished the cam...
Posted by fiannor on 15/01/2005 - 19:43
Aperture questions about a SFXn
Fiannor, Aperture is always expressed as an "F" number, as in "f3.5". Don't ask me why, but that is the convention. I was referring to apertures, not focussing. You will soon recognise the numbers. In full, they are: f1, f1.4, f2, f2.8, f4, f5.6, f8, f11, f16, f22 and f32. Note how every n...
Posted by George Lazarette on 16/01/2005 - 15:25
Aperture questions about a SFXn
The reason I thought what you had said were originally focal numbers, was because at 8 and above my f stops are only whole numbers. I've never seen a 13.5 aperture listed on the f-stop ring, (but then haven't seen allot of lenses). I know the difference on my camera between aperture and these othe...
Posted by fiannor on 17/01/2005 - 02:15
