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Forum: Troubleshooting and Beginner Help
11-14-2019, 01:26 AM
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@stevebrot - Bingo!
It's called something slightly different on my K70, but Menu > Noise Reduction > Slow Shutter Speed NR, was defaulting to Auto. I have set that to OFF, and it appears to have done the trick. Can't believe I hadn't found that previously.
So, many thanks to everybody for their suggestions. Instead of insulating tape to cover the viewfinder, I've bought a cover through ebay for a couple of £'s. That has arrived and fits fine.
It looks like we are there now. Cheers!
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Forum: Troubleshooting and Beginner Help
11-13-2019, 01:33 PM
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Tried the suggestions above to see if any of them would stop the orange LED flashing for the same duration as the exposure setting in Bulb mode:
Different SD card - no difference
Factory reset of camera - no difference
Instead of using the timed setting in Bulb mode, tried holding shutter open for one minute - no difference, orange light flashed for one minute. (that was on C1 menu Bulb option 1)
Changed C1 menu Bulb setting to option 2, so pressed shutter to open, and a minute later pressed shutter again to close - no difference, still got one minute of orange flashing LED
I've described the problem to Digital Support Contact Form - RICOH IMAGING EUROPE S.A.S, but I'm not that hopeful of receiving a reply.
Does anybody know of any other Ricoh/Pentax contacts I can ask?
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Forum: Troubleshooting and Beginner Help
11-11-2019, 05:06 AM
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Hi, I think that covering the viewfinder has resolved part of my problem, see the latest two attachments from my garden (not the most scenic view), but the second at four minutes (first was 1/125) is definitely better than what I got yesterday. The pictures I posted yesterday were some of the better ones, some I took were almost white-outs, and I realise now that those had the sun on the rear of the camera, ie. straight into the viewfinder.
Thanks for offering that suggestion. I now havea roll of black insulating tape in my camera bag.
All pictures uploaded so far have been straight from my camera, no editing.
Turning ISONR to OFF doesn't appear to reduce the time the orange LED flashes. Does anybody know if what is going on in the background is necessary/important, can be menu disabled?
I'd like to dabble with much longer exposure times, but having to wait twice as long as necessary will be painful. I'll go through a lot of gum!
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Forum: Troubleshooting and Beginner Help
11-10-2019, 09:53 AM
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@Othar - I changed ISONR from Auto to ISONR OFF, unfortunately it didn't make any difference, the organge LED still flashed for the same duration as the exposure was set for.
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Forum: Troubleshooting and Beginner Help
11-10-2019, 09:45 AM
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Hi, the ..908 and ..952 shots show the non-filter and filter/bulb settings I'm using.
358 is a non-filtered picure at 1/125 and F14. 359 us with the 15 stop Super Stopper filter where 1/125sec = 4 minutes on Bulb, 360 is the same pic but at 2 minutes. Both at F14, ISO 400
362 is 1/125 F13, 363 is 4 mins F13.
372 is 1/25 F8, 373 is F8 2mins.
For every picture taken with Bulb, the apearture opens for the set time, and then the orange light flashes for the same duration. Which, for a 4 minute picture takes a very long time.
@Othar - the SD card is a 170MB/s SanDisk Extreme Pro, so there shouldn't be any delay in the writing time to the card.
@TwoUptons - The dust spec is in the lens, so I'm hoping Father Christmas brings me a replacement.
Not sure what I'm doing wrong, too easy to blame the camera.
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Forum: Troubleshooting and Beginner Help
11-09-2019, 03:25 PM
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Thanks for your replies. I can confirm that no stray light is getting in past the filter, I'm using a Lee filter in the first slot of a Lee adaptor. I learnt the technique on a photography course, and the instructor watching me confirmed I was doing everything right, but he wasn't familiar with Pentax. Everybody else was using Canon or Nikon wheer their Bulb settings were set as the Lee 'table' suggested. The instructor also confirmed that on the longer exposure pictures I took, where the Lee filter 'table' (I was using a class-room provided Super-Stopper at the time) said four minutes for the equivalent duration without the filter, and when the K-70 was set to four minutes, it had the shutter open for four minutes, and then a further four minutes of orange flashing light. The result was a white-out over-exposure. As indicated earlier, if I set the exposure time for a half of what Lee indicate then in the case of four minutes, if I set it for two, I get two minutes of exposure, and two minutes of orange flashing light, with a decent result. When I took the picture uploaded I only had a ten stop Big-Stopper with me. To try and get the longest exposure possible, without a filter I set the ISO to 100 with F29 giving me 1/15sec. A Lee big-stopper says 1 minute for 1/15sec. I took the attached at a 30 second exposure, with 100 ISO, and F29, the camera opened the shutter for 30 seconds and flashed the orange light for a further 30.
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Forum: Troubleshooting and Beginner Help
11-09-2019, 05:11 AM
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I want to use the Bulb setting on my K-70 for long exposure with a Lee Super Stopper (15 stop) filter. However, I can't seem to get the exposure timing right. If the table on the Lee filter documentation indicates I need an exposure of one minute for the equivalent of 1/500th of a second normal exposure without the filter, I'm setting the camera to B, setting the aperture with the rear dial, pressing the O on the top of the camera so the duration time is displayed, setting the exposure time to one minute with the front dial, and then pressing the Shutter. The shutter is opening for the one-minute duration, but then the shutter appears to close and I get a flashing orange light for the same duration as the shutter was open for. This results in the picture taken being over exposed. It appears that I'm getting a "double time". I'm getting better results by setting the exposure to 30 seconds. i.e. half of what Lee prescribe. I've had exactly the same results when I've tried longer timings, ie. Lee say 4 minutes for a /125th sec, so I set Bulb to 2 minutes and I get 2 minutes of open shutter plus t minutes of flashing orange light, and the results are pretty good.
Why am I having to set Bulb exposure to half the Lee prescribed time? When my colleagues using Canon and Nikon do this with the same filter, and comparable apertures etc., they set their Bulb exposure exactly as Lee define.
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