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Old Nov 9, 2009, 10:28 PM   #1
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Default My Usual Test Shots With My New Lens

I bought a new/old Pentax M 50mm 1.7 off ebay as my other one seemed to be getting some haze in it and it never focused properly.
I must say I still find it hard to get manually focused in anything but bright light, has anyone got some tips.
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Old Nov 9, 2009, 10:51 PM   #2
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When I do get a good focus I love this lens.
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Old Nov 10, 2009, 4:45 AM   #3
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Nice shots Rodney. Main comment I have with manual lenses is to always use a hood. I mostly use preset aperture and camera's A mode to get the exposure right. The "hazy" exposures in my experience are usually because the lens defaults to wide open and you get overexposure. Hence lenses with manual switch or other preset aperture are my preference. Does make focussing tougher unless you can toggle between wide open and stopped down. Hope these comments make sense!
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Old Nov 10, 2009, 2:40 PM   #4
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Rodney you could try using trap focus. Set your camera to manual. Set to single shot mode and AF ( if your camera has a AFS setting engage that). Set exposure, press the shutter and slowly turn the focus ring until the shutter releases.

BTW I like both of the pictures you took with the new lens.

Lou

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Old Nov 10, 2009, 9:01 PM   #5
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Looks like a sharp lens, and that picture of Patches is wonderful. I found that I got much better with manual focusing when I was doing a lot of macro with a manual focus lens. You might try manually focusing your Tamron macro at 1:1 or 1:2, seeing if you agree with the camera's beep/focus indicator. Also make sure that your viewfinder's dioper adjustment is adjusted correctly for your eye. It does take some practice.
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Old Nov 10, 2009, 10:52 PM   #6
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Thank You BB2 , Lou and Harriet for your comments and tips.

On my K20D it says in the manual you need a cable release to use trap focus, so I''ll buy one and give that a go.

It is in low light I have the most probems, I have heard of Katz Eyes - http://www.katzeyeoptics.com/ help in low light, but also heard they create problems on zoom lens like my Pentax 55-300mm, anyone had any experience with Katz Eyes.

Rodney
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Old Nov 12, 2009, 1:01 AM   #7
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Well it is accurate, but does anyone know about the Katz Eyes ?

Rodney
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Old Nov 12, 2009, 2:16 PM   #8
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I haven't used a split screen on a dSLR - I've thought about the Katz Eye any number of times but don't have enough trouble focusing to want to spend the money on one. I understand the problem isn't so much the zoom part that's the problem, but rather the slowness of the lens that'll be a problem. I vaguely remember from my film days having one side of the viewfinder being difficult to see through when using slow lenses/small apertures.
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