|
Forum: Pentax DSLR Discussion
11-19-2010, 08:39 PM
|
| |
ok, i did not realize that you were using extension tubes with an aperture lever on it, ignore everything i said in every post before this.
|
|
Forum: Pentax DSLR Discussion
11-18-2010, 10:21 PM
|
| |
>_> I just slapped on the extension tube, the macro lens, set "allow aperture ring" to on and started shooting. I thought there was something wrong with my viewfinder at first because it was so dark, then i realized that my aperture was closing when i turn the ring, and i was used to the aperture being wide open all of the time as on my 18-55 kit lens.
And my extension tubes have a matte paint covering the whole thing. Its your basic black 3-4 dollar extension tubes from Ebay.
I need to ask. What, exactly, are you expecting your camera to do with the extension tubes on?
|
|
Forum: Pentax DSLR Discussion
11-18-2010, 09:55 PM
|
| |
Using a Sigma Macro 28-80 auto focus lens. The extension tubes are your basic metal tubes, no electrical connections. I set the aperture wheel to my desired Aperture and "what i see is what i get". Camera forces me to be in Aperture Priority i believe.
If there is no aperture lever on the extension tubes there is NO WAY for the camera to move the aperture on the lens, AT ALL
I dont know about your friends camera, but there is physically no way for the camera to move the aperture without an aperture lever on the extension tube.
|
|
Forum: Pentax DSLR Discussion
11-18-2010, 09:47 PM
|
| |
I'm still not exactly sure what the definition of stop-down metering is. But when i use Extension tubes with my Pentax K-x i can see the depth of field in the viewfinder without pushing any buttons.
When i turn the aperture dial the depth of field changes in the viewfinder, and the green button sets the proper shutter speed. The only problem i have is sometimes the image is so dark in the viewfinder i cannot see properly to focus correctly.
|
