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Forum: Site Suggestions and Help
01-30-2022, 11:28 AM
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Forum: Repairs and Warranty Service
07-05-2020, 07:18 AM
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Well go figure. That was the issue, Not a Number. What a moron I am.
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Forum: Repairs and Warranty Service
07-04-2020, 02:32 PM
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I have a Pentax 100 macro (SMC PENTAX-DFA 1:2.8 100mm MACRO 49mm). When I attach it to a K-20D body and turn the camera on I get a flashing 'F--' and that's all. I've tried it on 2 different bodies and get the same result. I've cleaned the contacts but that hasn't made any difference. Is it work repairing this lens or better to get another one? Thanks for any advice.
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Forum: Ask B&H Photo!
07-02-2014, 06:59 AM
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Forum: Ask B&H Photo!
07-01-2014, 11:36 AM
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hello Chuck,
thanks very much for your response. the end of the bellows the CAMERA mounts to has a male t-mount and requires an adapter with a female t-mount on one side and a PK mount for a CAMERA on the other side. I have that adapter. What I'm looking for is the adapter for the other side of the bellows that the LENS mounts to. The t-mount on the LENS side of the bellows is female. The adapter for the LENS should have a male t-mount (although I could make a female work) and the other side of the adapter would need to have a PK mount for a LENS. Any idea if a LENS adapter like that is available?
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Forum: Ask B&H Photo!
06-29-2014, 04:54 PM
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Hello,
I'm looking for (preferably) a male t-mount (42mm x 0.75 thread pitch) on one side and a Pentax K mount for a lens (not camera) on the other side. I could also use a female t-mount if a male version isn't available. Would you have such a beast? This type of mount is for mounting a lens to a Vivitar Bellows System (stock no. 57-0352). See the photo at Vintage Vivitar Bellows and Slide Copy Attachment Sy (05/12/2013)... for the bellows system.
Larry
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Forum: Pentax DSLR Discussion
11-22-2012, 08:03 AM
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Thanks for saying so Vincent. I appreciate your comments. I need to make a couple more corrections and will do so with a reply rather than editing the original message. First, CardRecoveryPro is NOT less expensive than CardRecovery. Just the opposite. Second, in an email conversation with CardRecovery, they indicated after testing that the file header and structure information for Pentax DNG is very similar to Pentax PEF. Thus the files it saw as "PEF" can be safely renamed to DNG. In addition, the company sent a gratis registration number to fully test the files I've been working on using CardRecovery, which I will do early next week. Kudos for CardRecovery. Lastly, I think I'll send a message the fearless forum leaders and suggest they create a permanent-type page containing information for recovering jpg, dng, pef (and other?) files. It probably doesn't happen often but when it does, it can be pretty disappointing if not downright expensive to lose images.
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Forum: Pentax DSLR Discussion
11-20-2012, 07:35 PM
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Here's what I've found using several different photo recovery software with the caveat that my tests are far from rigorous and comprehensive. Again, my original problem is that I used a SanDisk 16 GB Ultra class 10 SDHC card in a K20D. I formatted the card in the camera. After shooting several hundred frames using RAW+ and saving images in both JPG and DNG, when I tried to download the images from that day's folder, no images were visible but the used space on the card was in the order of 14 GB. Incidentally, I was using firmware 1.03 and installing firmware 1.04 might solve the source of the problem but I'll have to test that later. To cut to the chase, the software PhotoRec recovered both the jpg AND dng files, and this software is free. I might send the programmer $10 because it did exactly what I needed it to without a required payment to use it, although other software will also recover Pentax DNG files. The method I used to have the different software access the SDHC card was to install the software on a desktop computer running Windows 7 Ultimate and insert the card into the SD/MMC card slot on the computer. Before this I moved the lock switch on the card to the Lock position so nothing could write to the card.
PhotoRec version 6.14 (PhotoRec - CGSecurity) - downloads and installs fairly easily. It isn't a fancy program in that it runs in a DOS interface and you run the executable directly from the folder it was unzipped to. However, it was free, it worked, and it was here and now. All of my JPG and DNG files were recovered and the file sizes for the DNGs in particular came out right - about 25 MB in size.
CardRecoveryPro version 2.1.5.0 (Memory Card Recover Software - CardRecoveryPro?) - this is a free download and you can use the free (or demo) version to view the files on the card. In the window that appears after starting the software, you're allowed to choose the camera brand and categories of media to recover, such as Photos, Movie/Video, Sound/Audio. However, you do have to buy a license if you want to actually recover the files; that is, copy the files from the card to a folder on the hard drive. I didn't buy a license for this software. However, in the card scan, both the JPG and DNG appeared and the DNGs were about the right file size. I think that if I had to recover photo files on a semi-routine basis, I'd buy a license for this software.
PhotoRecoveryPro version 2.1.5.0 (Photo Recover Software - PhotoRecoveryPro?) - this software is produced by the same manufacturer as CardRecoveryPro and operated the same. I didn't take the time to try to discover the exact distinction but it did see both the JPG and DNG files on the card. Personally I'd buy a license for CardRecoveryPro unless I found some compelling reason to buy a license for this one.
RescuePro version 4.0.0.1 (SanDisk RescuePROŽ and RescuePROŽ Deluxe | LC Technology International, Inc.) - there is a Deluxe version of this but I only tried the non-Deluxe version. It saw only the JPG files but the Deluxe version lists DNG files as a recognized format, whereas the nonDeluxe version doesn't. However, just because the Deluxe version says it will recognize the DNG format doesn't necessarily mean it will recover Pentax DNG files. Not only does this software require you to buy a license before it will recover the files, it makes you send in your contact info in order to download a demo copy. You'll then start getting emails from the company.
RemoRecover version 3.0 (Remo Software - Tools to Recover, Repair, Erase, Manage & Optimize Data select the Photo Recovery software) - this software allows you to select specific file extensions such as JPG, DNG Type 1 and DNG Type 2. The software recognized all the JPG and DNG files on the card. I believe that the DNG Type 1 selection recognized the correct DNG files as their file size was about right. The DNG Type 2 selection listed "DNG" files but wanted to save them as JPG files, and the file sizes weren't right - they were too small. Again, you need to buy a license before you an actually recover all the files. Since this software would do what I needed it to do, I'd consider purchasing a license but would probably prefer CardRecoveryPro as the CardRecoveryPro license is less expensive.
Recuva version 1.43.623 (Recuva - Download free download) - this software didn't see any files on the card, even when I used the "Deep Scan" option. There's not really anything further I can say about it.
CardRecovery version 6.10 (http://www.cardrecovery.com/) - this is software different from CardRecoveryPro and requires that you purchase a license to actually recover files. The software allows you to pick the brand camera, Pentax in this case. The evaluation copy did see all the files on the card but gave a file extension of PEF to the raw files instead of DNG. The file size looked about right - 25 MB. I did not buy a license for this software so I wasn't able to see what it would actually recover. I'd keep this software on the list as a useful recovery software.
Stellar Phoenix Photo Recovery Software (Photo Recovery Software Recover deleted lost digital photos from memory cards, digital cameras) - this is the software I used originally to try to recover my JPG and DNG files, and I did buy a license for it before I started researching and trying different recovery software. However, it only recovered JPG files and not the DNG files. Tisk, tisk.
In conclusion, for my particular problem I would try PhotoRec first, for free, and if I couldn't deal with the DOS interface then I'd purchase a license for CardRecoveryPro.
In any case, if you want the files to have the same filename sequence the camera uses, you'll have to rename the files. This is true for any of the software mentioned above.
Hope all this prose is useful to someone.
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Forum: Pentax DSLR Discussion
10-28-2012, 10:56 AM
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I've also had the pleasure of this happening with 2 16GB cards and a day and a half of shooting in South Africa with a K20D. I was quite motivated to get the files recovered. More specifically I was using a SanDisk 16GB Ultra card and recording all images as raw+ (DNG + JPG). I believe the main problem is that the K20D was designed to support a max SD card capacity of 8GB. I thought I had read this soon after I got the K20D in late 2008, although that spec is not in the Pentax manual. I've always used 4 or 8GB cards and have never had a problem whether I was recording jpg only, raw only, or raw+. For the full day of shooting with the 16GB I was able to review images on the camera lcd so didn't suspect any problems. But when I went to download the files by plugging the SD card into my laptop, the folder appeared but no files. I locked the card until I could recover the files. I eventually used Stellar Phoenix Photo Recovery Software (Photo Recovery Software Recover deleted lost digital photos from memory cards, digital cameras) to recover the jpg's. Note that the recovered jpg file is given a filename of the beginning sector the file is found in (I think) and if you want your file names to be compatible with those coming out of the camera then you have to rename them. As noted above for other software, the Stellar software didn't recognize and recover Pentax DNG files. I haven't pursued the software further or contacted the manufacturer to see if it is possible to recover the DNG files using their software. I just ran across Card Recovery software (Memory Card Recovery Software to Recover Lost Photos - CardRecovery), as noted above, and I notice the site indicates that the software supports recovery for Leica DNG, Samsung DNG, and Pentax PEF, among many others, but I don't see any mention of Pentax DNG. I'll investigate this further and report what I get back. Regardless, I won't be using any SD card with a capacity greater than 8GB in my K20D's.
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Forum: Post Your Photos!
10-19-2011, 11:36 AM
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Thank you very much for the compliments everyone. I get similar comments from others who have seen the photo but I consider the comments on this forum to be the real acid test - which is a good thing. :-) I appreciate y'all for taking the time to make comments.
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Forum: Post Your Photos!
10-18-2011, 05:25 AM
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Hello Alberts,
Thanks very much for saying so. I didn't take this photo from another balloon, and there are no secrets. The photo was taken from Balloon Fiesta Park where all the balloons launch from. The focal length was 300mm (450mm for 35mm equivalent). I used the stabilization on the lens and the one on the body was turned off. Also, no filter and I think I used fully automatic. I think the balloon was maybe a mile away - perhaps. By the way, I bought the lens from a seller on the Marketplace at this site and it has turned out to be fantastic.
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Forum: Post Your Photos!
10-17-2011, 08:52 PM
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Taken during the morning of the next to last day of the Albuquerque Balloon Fiesta 2011. Everything unusual intersecting to make this photo possible - snow, clouds, sun, and image in focus.
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Forum: Sold Items
08-05-2011, 08:04 PM
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Forum: Photographic Technique
07-22-2011, 02:57 PM
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Very much an eye popper of a photo. Congratulations on your win!
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Forum: Post Your Photos!
07-20-2011, 01:20 PM
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There's been some progress since I was there last in 1984 but I'd thought there'd be more by now. Thanks for sharing these.
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Forum: Photo Critique
07-20-2011, 01:09 PM
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An interesting flower I ran across that I don't remember seeing before. The first 2 are cropped. Not sure why the EXIF info isn't attached for them but for the first it is ISO 200, 1/250, f7.1 and for the second ISO 200, 1/200, f7.1.
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Forum: Photographic Technique
07-20-2011, 12:15 PM
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Nice write-up, Billy. The photo of the lizard is fantastic. I really like it.
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Forum: Post Your Photos!
08-26-2010, 07:19 PM
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Where in the n Adirondacks is this?
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Forum: Site Suggestions and Help
08-24-2010, 04:43 PM
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Oh, okay. Guess I won't suffer heartburn over it. :p Thanks.
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Forum: Site Suggestions and Help
08-23-2010, 10:10 PM
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Forum: Pentax SLR Lens Discussion
08-22-2010, 12:36 PM
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Thanks, Adam. You're right - I must have gotten excited about pressing keys on the keyboard as I couldn't find any references to DL either.
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Forum: Sold Items
08-22-2010, 12:01 PM
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Do you still have the K20D body for sale?
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Forum: Pentax SLR Lens Discussion
08-22-2010, 09:02 AM
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I'm in the market for several new lenses for a K20D and have been looking at both Pentax and Sigma brands. In the listing for Sigma lenses in the lens database on this site I notice that instead of DA, Sigma lists DC, DG, and DL. Can anyone point me to a site where these designations are defined/explained? Or should I even care?
Larry
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Forum: Pentax SLR Lens Discussion
12-06-2009, 01:44 PM
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I am beginning to look for zoom lenses for a K20D. I plan to use this lens primarily for wildlife photograpy. I would like a maximum zoom length of at least 300mm but preferably 400-500mm of F4 or less. I would also prefer that the lense be a Pentax lens but would be happy to hear about any other brands that would give equivalent results. Any suggestions and experiences would be greatly appreciated.
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Forum: Flashes, Lighting, and Studio
07-12-2008, 09:19 AM
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I have looked both in the manual and online for the output voltage/amperage for the X-synch and hot shoe on the K20D but can't find any. Does anyone know where I can find this?
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