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Forum: Photographic Technique
06-04-2008, 09:52 AM
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I need some help. I have downloaded ra and it seems to operate ok except that I cannot get the camera, K100d, to operate as a web cam. I do not know if this is even possible and if not what value is there to remote capture? Thanks in advance.
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Forum: Pentax DSLR Discussion
03-19-2008, 03:25 AM
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On page 136 of my K100d manual it states that, on the very bottom of the page, If Pentax type lens are not used that when multi seg metering is selected center-weighted metering is automaticaly set. Am I reading this right in that with my Tamron 18-250 multi-seg metering is not an option?
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Forum: Pentax SLR Lens Discussion
03-06-2008, 04:03 AM
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Geoffox---I know that it looks terrible on the cam but results are what count. an inexpensive,debatable, Olympus 1.7 telecon always gave me excellent results. However the 135-400 is proabably too large to adapt to it.
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Forum: Pentax SLR Lens Discussion
03-05-2008, 01:48 PM
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Both of these were hand held.
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Forum: Pentax SLR Lens Discussion
03-05-2008, 01:46 PM
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Second pic |
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Forum: Pentax SLR Lens Discussion
03-05-2008, 01:44 PM
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I think I may have found the problem. With both lens coupled I cycled the focus ring on the 18-250 at least one hundred times. This loosened up the stiffness and I believe broke it in. It is now easier to turn. This 1.4 tele is a brand new unit. I then put the 1.4 and the 18-250 and an Olympus 1.7 tele on my K100D and used auto focus. It is a reasonably bright day here. Here are two examples resized and sharpened only.[IMG] [/IMG]
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Forum: Pentax SLR Lens Discussion
03-05-2008, 08:52 AM
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Thanks Lowell. I contacted Tamron and here is their reply. --------"t is not recommended to use a teleconverter with that lens because of the high gear ration in the lens and when you add a converter, it produces more drag on the gears. And that is the cause of the stiff feeling which even in manual focus will not disengage the converter from the lens. Also the converter is not designed for digital cameras and will degrade the quality of the len's image." This is the first time I have heard the 1.4 tele was not meant to be used on a digital camera! Also the extra weight of the tele making the gears hard to operate makes me wonder because with a Oly 1.7 tele mounted on the 18-250 everything works perfectly even though the Oly is several times heavier.
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Forum: Pentax SLR Lens Discussion
03-05-2008, 02:58 AM
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Thank you to all for your replies. Gulfer--are you saying that the AF works accross the entire zoom range of the 18-250 with the 1.4 tele attached?
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Forum: Pentax SLR Lens Discussion
03-04-2008, 04:54 PM
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The focus ring on the 18-250 works silky smooth on its own. When I attach the telecon to the 18-250 the focus ring becomes quite stiff to operate, enough so that it makes manual focusing quite difficult but not impossible. I would certainly appreciate any suggestions.
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Forum: Digital Processing, Software, and Printing
11-23-2007, 07:23 PM
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Do what we all do. Google Noise Ninja profiles.
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Forum: Pentax DSLR Discussion
11-14-2007, 05:45 PM
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Thanks for the feedback. I guess there is no magic setting. I will stay with setting my own.
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Forum: Pentax DSLR Discussion
11-14-2007, 07:16 AM
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I am looking for opinions on the reliability of auto ISO. I would use the 200-800 setting. I believe the ability to use exposure comp. would be lost in this mode. Are there any other downsides to it?
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Forum: Pentax DSLR Discussion
10-29-2007, 05:18 AM
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AXL---thank you. That makes sense.
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Forum: Pentax DSLR Discussion
10-28-2007, 02:29 PM
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Does this mean that if I set custom white bal. and leave it that every time it is used the custom white will be effective? If this is true, why would you ever change it? Sounds too good to be true.
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