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Forum: Pentax Medium Format 03-02-2020, 10:18 PM  
Do I Win for Highest Shutter Count? [Pentax 645z]
Posted By iCrop
Replies: 14
Views: 1,454
Welcome to the Pentax Fora. My 645Z only has 15K shutter count on it, but that's from being discriminating about what I use it for. Mostly landscapes. I'm more in-discriminating about hummingbirds. I use my K-50s for that, one of which now has a shutter count of 410,222 as of today. But who's counting? ;)

May your next body have less use/abuse.
Forum: Pentax Medium Format 03-02-2020, 10:01 PM  
Upside down images
Posted By iCrop
Replies: 7
Views: 1,103
As I understand it, you got that 645Z from Down Under. Make sure your date/time/location settings are accurate for your current location. :)
Forum: Pentax Medium Format 02-27-2020, 09:50 PM  
Telescope adapter for 645D
Posted By iCrop
Replies: 22
Views: 2,757
Good idea to try it on a 'Pentax Adapter K For 645 Lens', so I pulled mine out to test it. At first, I put it on, it turned and was tight, but clicked into place. I removed the RAFCamera adapter and tried it again. The second time it was tight as well, but spun until it became loose and now it's stuck. It didn't 'click' the second time. Pressing the lens release button allows the RAFCamera adapter to turn slightly, but it will not turn enough counterclockwise to remove it from the Pentax adapter. Glad I didn't try it again on the camera. It seems to me now that the problem may be related to whether the lens release button is pressed when turning, or not. I usually hold down the release button until a lens locks into place, but that may not work for the RAFCamera adapter. If I am able to remove it, I'll try to test this further.
Forum: Pentax Medium Format 02-25-2020, 01:18 PM  
Telescope adapter for 645D
Posted By iCrop
Replies: 22
Views: 2,757
I ordered a "M65x1 female thread to Pentax 645 camera mount adapter", found in the link above and a "T2 female to M65x1 male thread adapter" from RAFCamera via ebay. They arrived relatively quickly from Belarus to California. I also ordered a 2" T2 nosepiece to go from the T2 to M65x1 adapter to my Meade telescope, from a place called Agena AstroProducts.

When I first put the assembly of adapters on my 645Z the whole thing seemed to turn nicely in the bayonet mount of the camera, but never clicked into place like a lens would. It spun with a bit of friction, then spun free. It would turn about 45 degrees, back and forth, in the camera mount, without locking into place. When I pressed the lens release button to try to remove it, it wouldn't move past whatever was stopping it from turning counter clockwise. I removed the nosepiece and T2 to M65x1 adapter to see if I could see what was preventing the removal of the adapter, but couldn't see anything causing the problem. I applied a moderate amount of force to try to turn it but stopped for fear of damaging the camera.

I contacted RAFCamera and got a reply within an hour. This was the verbal exchange:
"me:
Upon first use of this adapter ring it has locked onto the camera and cannot be removed. Do you have any tips on how to remove it from my Pentax 645Z?

rafcamera:
Hi!
Tight a helicoid bit stronger and use it to turn adapter counterclockwise (don't forget to press a lens release button).
Thank you.
Raf.

me:
Thank you for the quick reply. It should require no more force to remove than a lens, yet it will not turn while pressing the lens release button.

rafcamera:
A lens has much more convenient grip, and lens mounts are made of steel usually (not more soft aluminium alloy like our adapter).
Moreover, we trying to make more strict tolerances, so tension is higher than with native lens usually.
I tested these adapters on my old Pentax 645. May be it is bit worn and allows bit more easy adapter turning.
But you should have no issues removing it anyway. Never had such reports so far. Just don't know what went wrong in your case, sorry.
Please try to apply bit more force.

me:
Again, thank you for the reply. I have been able to remove it, applying much more force than expected. Thank you. When it was on the camera, the adapter would turn approximately 45 degrees freely, as if it were loose. But when turning to remove it, and holding down the lens release button, it would stop and not move until extreme force was applied. I note some anodizing has been removed in the process.

rafcamera:
Our adapters have no stop pins. Looks like you overturned it during installation. Just be more careful next time, or you may damage camera mount. Thank you.

me:
That seems like some critical information not found in the instructions.

rafcamera:
People just turn adapter till a lock click usually, so no special instructions required. Thank you."

I need to use my 645Z next month, so I haven't attempted to put the adapter back on yet, and may never do so.

The point of my post: Use extreme caution putting any adapter like this on your camera.
Forum: Pentax DSLR Discussion 01-24-2020, 10:50 PM  
400,000 Shutter Count Club
Posted By iCrop
Replies: 12
Views: 1,283
Thank you!
Forum: Pentax DSLR Discussion 01-23-2020, 08:53 PM  
400,000 Shutter Count Club
Posted By iCrop
Replies: 12
Views: 1,283
Had not heard about this. Post a link and I'll give the K-50 a plug.

---------- Post added 01-23-20 at 07:57 PM ----------


Thanks. That would be the Sigma 18-300mm 1:3.5-6.3 DC.
Forum: Pentax DSLR Discussion 01-22-2020, 10:42 PM  
400,000 Shutter Count Club
Posted By iCrop
Replies: 12
Views: 1,283
I don't suppose they have many hummingbirds down under. ;) I end up with mostly butts on some days. :) Thanks.
Forum: Pentax DSLR Discussion 01-22-2020, 10:15 PM  
400,000 Shutter Count Club
Posted By iCrop
Replies: 12
Views: 1,283
My trusty K-50, bought new in July, 2015, just had another milestone. 400K shutter count on January 16, 2020. After 250K, in December, 2017, I sent it in to Precision for a CLA, but only to make sure it would last a bit longer. there were no problems with it. They said it needed the aperture block replaced, though there were no issues with exposure, I said go ahead. The actual 400,000 image had just a bird butt in it, so i tossed it. Here's the next worthwhile one, number 400256.
Forum: Pentax Medium Format 08-22-2019, 10:55 AM  
Hi From San Antonio Texas - and 645Z question
Posted By iCrop
Replies: 10
Views: 1,373
Welcome to the forum. My experience has been that Slow Shutter Speed NR is applied to RAW or JPG, and when ON, the camera takes the image and then takes another with the shutter closed, to determine which pixels are stuck on, or hot, and then removes them from the original image. This would be useful, for example, when shooting star trails on a warm evening, when the sensor could get heated from long exposures. If you're taking 30 sec. shots with Slow Shutter Speed NR ON, it will take a second 30 sec. shot to remove the hot pixels from the image. In practice it seems that the camera takes forever to get a shot. That's why I try to do star trail photos only on cool evenings with Slow Shutter Speed NR Off.
Forum: Pentax Price Watch 08-21-2019, 07:51 AM  
SMC PENTAX DA 645 25MM F4 AL IF SDM AW on Ricoh-Imaging.com
Posted By iCrop
Replies: 2
Views: 775
You're right. That was quick, there must not have been many.
Forum: Pentax Price Watch 08-20-2019, 09:12 PM  
SMC PENTAX DA 645 25MM F4 AL IF SDM AW on Ricoh-Imaging.com
Posted By iCrop
Replies: 2
Views: 775
I hesitated on this one, but finally jumped. And I'm glad I did. It arrived today, and looks new, right down to the included packaging and documentation. It's smaller than I recall, but it's no Limited by any means. The web page indicates at least one more for another lucky soul. It took me 5 days to place the order, since their web site rejected my order once my credit card company balked at the order. Hopefully the next person has better luck. Get it while you can.

I think I'm going to enjoy this on my 645Z. :)

SMC PENTAX DA 645 25MM F4 AL IF SDM AW - Ricoh $2700 USD
Forum: Pentax Medium Format 02-19-2019, 01:34 PM  
645Z - Catch-in-focus?
Posted By iCrop
Replies: 15
Views: 3,305
Thanks for the bump on this. I haven't found a solution to this. It's probably just as well. Since I originally posted this back in 2014, I've retired from my 'day job' and have been shooting hummingbirds in my garden on pretty much a daily basis. I picked up a K-50 to do that job in 2015, it now has a shutter count of over 333,000. If the Z had catch-in-focus capabilities, I'm sure mine would have a significantly higher shutter count than the 14,200 it currently has. Not that I don't think the Z could handle that type of use (abuse?). ;)
Forum: Pentax Medium Format 12-22-2018, 11:20 PM  
question on diagnostics for 645z
Posted By iCrop
Replies: 5
Views: 1,017
The closest thing to what you suggest for diagnostics on ANY Pentax camera is a knowledgeable view of the EXIF data from an image. That will give you the shutter count among other variables pertaining to the camera at the time the image was shot. If you can interpret all the data, it MAY tell you if "everything is functioning normally".
I can tell you from experience, that the 645Z is a reliable camera if it hasn't been abused, and that my K-50, with a shutter count of over 322,000 in less than 3 years, is still shooting daily.
If the gear is in good shape, and used with care, it should last you a long time. My 15 year old *istD still works! Good luck on making your decision.
Forum: Pentax Medium Format 11-12-2018, 10:44 PM  
Pentax-A 645 120 macro f4... I need bokeh samples
Posted By iCrop
Replies: 24
Views: 2,565
Nothing to be scared of here. The lens can be had for less than $200 on ebay. Grab one and learn to use it to your liking. If not, sell it. BTW, what is a 'nitid' lens? (Please forgive my ignorance. :))
Forum: Pentax Medium Format 11-12-2018, 12:29 PM  
Pentax-A 645 120 macro f4... I need bokeh samples
Posted By iCrop
Replies: 24
Views: 2,565
These were taken with a 645Z and A 645 120mm Macro F4, on separate overcast days in 2015:
1/100s, f10, ISO 1000

1/80s, f25, ISO 1000


Good luck with your quest. I hope this helps.
Forum: Pentax DSLR Discussion 06-13-2018, 07:38 AM  
Pentax durability
Posted By iCrop
Replies: 31
Views: 4,789
Thank you.

---------- Post added 06-13-18 at 07:39 AM ----------



It's addictive. ;)

---------- Post added 06-13-18 at 07:44 AM ----------





There's a lot of life left in your k-50s!

---------- Post added 06-13-18 at 07:56 AM ----------



Rufous are just Allen's minus green. :eek: Also pretty birds.

I've not seen violet-green swallows. You may have something unique to photograph there. It took me 10 years to get to the process I use now (trial and error), but I can now sell them at local art shows and online. Develop a process and you may be able to do the same...
Forum: Pentax DSLR Discussion 06-12-2018, 07:30 AM  
Pentax durability
Posted By iCrop
Replies: 31
Views: 4,789
Chip, you two need to get out and shoot more! ;)
Forum: Pentax DSLR Discussion 06-11-2018, 07:58 AM  
Pentax durability
Posted By iCrop
Replies: 31
Views: 4,789
The number of shots daily varies with bird activity, but often not how one might think. If I get a dominant bird in the yard, she may be good at chasing the other birds away, and I'll get only 75 shots of just her. But when it's busy, and they all get along, I can get days where it shoots more than 2500. I've noted more than 8 different birds in the yard at times.
Forum: Pentax DSLR Discussion 06-10-2018, 11:51 AM  
Pentax durability
Posted By iCrop
Replies: 31
Views: 4,789
Thank you all. The photo isn't one of its best, shot at mid-day, so lighting wasn't the best. But still, it's a pretty clear shot.





Yes, catch-in-focus is used here. Current lens of choice is the SMC Pentax-A 70-210mm F4 (a steal at $50), set at 210mm, about 6' from a feeder. It's powered by a 12V, 9A battery and a voltage regulator to drop the voltage to the 7.4V the camera requires. I set it up just before sunrise and let it shoot until around noon, then re-orient it for the afternoon sunlight. On hot days, when it gets over 95F, the built in over-temp function kicks in, and I have to unlock the shutter release and re-engage it. I also fashioned a cover for it, out of .0125" (0.31mm) shim stock to keep birds from pooping on it. Good thing, it's gotten pretty crusty over the years.
Forum: Pentax DSLR Discussion 06-09-2018, 09:59 PM  
Pentax durability
Posted By iCrop
Replies: 31
Views: 4,789
My Pentax K-50 sits in our yard, daily, snapping away at all the hummingbirds that pass through our yard. It has been doing that since July, 2015. Today, it took photo 300,000. This is it, of a young female Allen's Hummingbird. I hope it lasts for 300,000 more. ;)

Forum: Pentax K-1 & K-1 II 03-06-2018, 11:25 PM  
External power
Posted By iCrop
Replies: 10
Views: 2,824
If you're handy with a soldering iron and can read schematics, you might want to check this out: DIY AC Adapter for The Pentax K10D and K20D | The Roaming Drone I use 2 of these daily to shoot hummingbirds, dawn to dusk, powered by 12v batteries for UPSs.
Forum: Pentax Medium Format 11-02-2017, 08:39 AM  
645z square lens hoods
Posted By iCrop
Replies: 14
Views: 1,588
Glad to help. Let us know how it works for you.
Forum: Pentax Medium Format 11-01-2017, 12:37 PM  
645z square lens hoods
Posted By iCrop
Replies: 14
Views: 1,588
You're welcome. Given the design of the clamping mechanism on the hood, it can move if mishandled. This is as secure as if the hood were mounted directly on the lens. So, as long as the step-up ring is securely threaded on the lens, and the hood is securely clamped on the ring, then I'd say Yes. If one were to bump it, it will move, but then the whole camera may.
Forum: Pentax Medium Format 10-31-2017, 10:17 PM  
645z square lens hoods
Posted By iCrop
Replies: 14
Views: 1,588
I'll take that as a compliment. ;) Thank you, Sir.
My SMC-A 645 35mm was purchased used more than 8 years ago, when I had a 645N. According to the lens reviews here, a new one originally came with a round hood. My lens, if I recall correctly, was purchased from KEH, as a 'bargain' lens, sans caps. I find it was a bargain, for me, and this clip on hood, which I adapted later, has worked well on it. :)
Now that you've reminded me, I've got to go off and see how it fits on my SMC-A 67 45mm... :lol:
Forum: Pentax Medium Format 10-31-2017, 10:42 AM  
645z square lens hoods
Posted By iCrop
Replies: 14
Views: 1,588
As the kids say, 'This is how I roll'.





I hope this helps.
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