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Forum: Pentax Medium Format 08-25-2020, 01:51 PM  
645 Extension Tubes
Posted By Ryan Tischer
Replies: 32
Views: 5,625
Hi Ken, I don't have my extension tubes on me, but I'd just give it a try and see if they work, sorry I'm not of more help!
Forum: Pentax Medium Format 08-10-2020, 10:05 AM  
Camera Repair: Pentax 645Z & 28-45mm
Posted By Ryan Tischer
Replies: 6
Views: 648
I recently dropped my 645Z + 28-45mm lens on pavement, badly denting the filter ring and leaving several dents on the body. I've made a claim with my insurance and naturally the adjuster is making things as difficult as possible and is requiring I find out if someone can repair it first.

Is there anywhere in the U.S. that could potentially repair the lens + camera?

On a separate note, make sure you zip your camera bag shut before you swing it onto your shoulder, SMH.
Forum: Repairs and Warranty Service 04-09-2020, 12:14 PM  
Sticky: Pentax Repair Facilities (Wordwide listing)
Posted By Ryan Tischer
Replies: 126
Views: 33,200
I'll touch base with him later and see how much the repair would likely cost...I just bought a mint 645-FA 150-300mm with original soft case for under $300 w/ S&H on eBay. If his repair is significantly less than that maybe I'll have him repair it and you'll see it for sale on this forum :)
Forum: Pentax Medium Format 04-09-2020, 08:09 AM  
Exposure Issues (due to 645-FA 150-300mm or 645Z?)
Posted By Ryan Tischer
Replies: 10
Views: 596
I put both my 28-45 and 80-160 lenses on and had no issues, so like you said it may be an aperture issue with the lens, which was also my original suspicion (and what I'd hoped for, instead of a camera issue).

---------- Post added 04-09-20 at 10:20 AM ----------

I just compared my 150-300 lens to one that I know has been working normally...I'm pretty sure it's a sticky aperture because when I stop it down manually using the aperture ring and then move the little lever (or whatever that's called) it opens back up slowly, instead of instantly like my other functioning lens.

Now, the question is...can I get it repaired anywhere? Or does it just need some lubrication and can I do that myself?
Forum: Pentax Medium Format 04-08-2020, 07:17 PM  
Exposure Issues (due to 645-FA 150-300mm or 645Z?)
Posted By Ryan Tischer
Replies: 10
Views: 596
Here's an image, they were all shot with identical exposure settings, but they're totally different exposures when you look at them:

(in case the attachment doesn't work: Expsoure Issue (Image only))
Forum: Pentax Medium Format 04-08-2020, 07:07 PM  
Exposure Issues (due to 645-FA 150-300mm or 645Z?)
Posted By Ryan Tischer
Replies: 10
Views: 596
These were all shot with the same camera settings and shot in rapid succession, so I'm sure the exposure difference wasn't due to changing light.

Forum: Pentax Medium Format 04-08-2020, 12:03 PM  
Exposure Issues (due to 645-FA 150-300mm or 645Z?)
Posted By Ryan Tischer
Replies: 10
Views: 596
I just started noticing some exposure issues with my 645Z where despite having the exact same camera settings, the exposure varies widely from image to image. For example, let's say I'm shooting at 1/60 sec, f/8, ISO 100...I don't change any settings, but from image to image the exposure varies widely.

So far it only seems to do this when using my 645-FA 150-300mm, so I'm hoping it's an issue with the lens (this wouldn't surprise me as I dropped it a while back and cracked the lens hood) and not the camera.

Any ideas on troubleshooting this?
Forum: Monthly Photo Contests 08-08-2019, 07:53 AM  
Brown Pelicans in Flight
Posted By Ryan Tischer
Replies: 19
Views: 585
Brown Pelicans in Flight -captured along Smathers Beach in Key West, FL
Pentax 645Z, Pentax 645 FA 150-300mm @ 300mm, ISO 1600, 1/1600 sec exp.
Forum: Pentax Medium Format 10-07-2018, 08:25 PM  
645Z vs. Fuji MFD Mirrorless
Posted By Ryan Tischer
Replies: 31
Views: 3,820
Thank you for all your input!
Forum: Pentax Medium Format 10-07-2018, 06:28 PM  
645Z vs. Fuji MFD Mirrorless
Posted By Ryan Tischer
Replies: 31
Views: 3,820
My business is based around selling artwork (I have a gallery and also sell work at art festivals) and itís important for me to be able to print images very large (like 8í wide and sometimes larger) when needed. Iíve found that in order to make a living at selling photographic artwork I need to be able to cater to higher end clients.

It would also be nice to have the option of cropping while still keeping sharpness.

---------- Post added 10-07-18 at 08:38 PM ----------



When I looked at the weight and dimensions of the Fuji 23mm vs. the Pentax D FA 25mm and also the Fuji 32-64 vs. the Pentax 28-45, the Fuji lenses were smaller and lighter.

I canít speak to the usability of the Fuji, but I may try renting one eventually before I make any sort of decision. For now Iím still pretty happy with the Pentax, except for the size and weight. I have a feeling Iíd take the camera out on more hikes if my camera bag wasnít so large and heavy.
Forum: Pentax Medium Format 10-07-2018, 10:57 AM  
645Z vs. Fuji MFD Mirrorless
Posted By Ryan Tischer
Replies: 31
Views: 3,820
Guess I should have done a quick search on B&H before asking about adapting the Pentax 645 to Fuji MF G mount: FotodioX Pro Mount Adapter for Pentax 645 Lens to P645A-GFX-PRO

There are only two reviews for it and those are for the non-pro version. One review said the lens can easily fall off if you're not careful, but again that's the non-pro version, so maybe that one is better.
Forum: Pentax Medium Format 10-07-2018, 10:43 AM  
645Z vs. Fuji MFD Mirrorless
Posted By Ryan Tischer
Replies: 31
Views: 3,820
Thank you, that was one of the more important things I was wondering.

Yes, I'm happy with the 645Z and my lens set-up, but eventually the system will need to be updated. It's not about bragging rights or anything, it's just that the 100mp sensor is something that I know would benefit my business. The Fuji pricing on lenses is also very good for MF.
Forum: Pentax Medium Format 10-07-2018, 10:14 AM  
645Z vs. Fuji MFD Mirrorless
Posted By Ryan Tischer
Replies: 31
Views: 3,820
Hey all, I've been shooting with the Pentax 645D and then the 645Z since 2012 and have to say I've been pretty pleased.

However, the idea of reducing the overall size and weight by moving to a mirrorless MFD is also tempting. Adding on the fact that Pentax no longer seems serious about pursuing a new version of the 645Z or new 645 digital lenses and with Fuji releasing a new 100mp mirrorless sometime in the future (and supposedly their lenses that resolve well enough to take advantage of the sensor) I'm not really feeling all that loyal to Pentax anymore. Plus, my understanding is that Fuji's customer service is much better than Pentax (I've never had any equipment issues with Pentax, but have heard horror stories of 6+ months to get a sensor or lens repaired). I shoot landscapes and often print very large (I've sold a number of 8'+ wide prints), so the 100mp sensor would actually make sense for me, especially if I decide I need to crop something or am in a situation where using my pano head isn't an option.

So, some questions for anyone that may know...

Can the Pentax 645 lenses be adapted to work on the Fuji mount? I love my 28-45mm, plus have ten other Pentax MF lenses for that system. The Fuji lens line up is more lacking than Pentax, which is also something that may hold me back, but if the lenses could be adapted that opens up more options.

Or, could the Fuji 23mm be adapted to work on my 645Z? I often find my 25mm to not quite wide enough, plus it isn't as sharp as the 28-45mm.

Also, has anyone done a comparison between the 645Z and new mirrorless Fuji MF cameras?
Forum: Monthly Photo Contests 10-02-2018, 09:29 AM  
Mirror Image
Posted By Ryan Tischer
Replies: 7
Views: 206
"Oxbow Bend" -reflections in the Snake River in Grand Teton National Park, WY, USA
Forum: Winners' Showcase 04-04-2018, 11:06 AM  
April, 2018 Runner-up: American Integrity
Posted By Ryan Tischer
Replies: 43
Views: 2,151
Captured in Duluth, MN, USA on a frigid December morning. This was the last ship of the season, headed into the Duluth harbor for winter lay up.
Forum: Pentax Medium Format 11-30-2017, 04:47 PM  
Considering moving to medium format 645D or 645Z
Posted By Ryan Tischer
Replies: 28
Views: 4,200
If you have a D810 already I wouldn't go to the 645D, as it's not that much of an upgrade and is much more limited in ISO. I owned a 645D first and now a 645Z and loved them both, but now that I have the Z would never go back. There's a good jump in quality there, especially considering the greatly improved ISO performance with the CMOS 50mp sensor. As far as walk-around-ability with the 645Z, I'd say that depends on the lens. If you have the 28-45mm (GREAT lens BTW) then that's a pretty bulky and heavy set-up. If you have the 35mm or 75mm primes then it's not so bad.
Forum: Pentax Medium Format 06-12-2017, 09:54 AM  
25mm vs 28-45mm comparison on 645Z
Posted By Ryan Tischer
Replies: 29
Views: 4,081
I own both the D FA 25mm and 28-45mm. The 28-45mm is a bit sharper at all apertures (by far the sharpest lens I've ever used), though the 25mm is quite sharp from f/10-f/14 (I don't often shoot with it at wider apertures). It starts to fall off just a touch at f/16 and more by f/22. The 25mm is a great lens to have...that 3mm makes a big difference in the wide angle. I'd love it if Pentax came out with something even a bit wider.
Forum: Monthly Photo Contests 01-05-2017, 09:29 AM  
January 2017 #125, Sunrise/Sunset
Posted By Ryan Tischer
Replies: 22
Views: 1,262
Shattered plate ice at sunrise along Lake Superior
Forum: Winners' Showcase 09-07-2016, 06:09 AM  
September, 2016 Third Place: Repeating Patterns
Posted By Ryan Tischer
Replies: 19
Views: 1,703
Forum: Monthly Photo Contests 11-02-2015, 08:04 AM  
Motion Entry
Posted By Ryan Tischer
Replies: 7
Views: 794
"Magical Morning" captured at Bond Falls in Paulding, Michigan, USA. A three image panorama.
Forum: Monthly Photo Contests 10-02-2015, 08:05 AM  
Oct 2015 "Colorful" Entry
Posted By Ryan Tischer
Replies: 3
Views: 583
Copyright Ryan Tischer
Forum: Pentax Medium Format 05-01-2015, 10:29 AM  
645Z Questions?
Posted By Ryan Tischer
Replies: 14
Views: 1,862
I can only speak to question #1...it's MUCH faster than the 645D, at least twice as fast, maybe three times. But still slower than other cameras with smaller files.
Forum: Pentax Medium Format 03-26-2015, 08:02 AM  
Pentax 645z vs Canon 5DSR 50.6 Mpx
Posted By Ryan Tischer
Replies: 103
Views: 29,161
I know quite a few landscape shooters that dropped Canon when the Nikon D800 came out, it seems Canon is about three years late to the high megapixel full frame party. Maybe they will get some shooters back now...at least they could use their Nikon glass on the Canon body (with an adapter like many have done with the 14-24mm), albeit with manual focus only so it would mostly be useful for landscape shooters.
Forum: Pentax Medium Format 03-24-2015, 06:38 AM  
Pentax 645z vs Canon 5DSR 50.6 Mpx
Posted By Ryan Tischer
Replies: 103
Views: 29,161
I shot with the 5D II for over two years and had the 16-35mm f/2.8L II and the 24-105mm f/4L. From my experience the Canon wide angle glass stinks compared to the MF Pentax lenses. I don't have any experience with the Nikon FF glass. With my Canon images were never sharp in the corners, even stopped down. I think you'd have to use Zeiss glass or at least the Nikon 14-24mm to get lenses that actually resolve enough for that sensor's tiny pixels. Or maybe I just had two bad copies of those lenses. I think for landscape shooters the wide angle glass is very important, at least for me it's a deal breaker. Also, the Canons are very noisy in the shadows. I was blown away by what you could pull from shadows with the 645D once I started using that system.


One of the issues mentioned by some professional landscape shooters was the uselessness of the Nikon live view in the D800, and they chose the 5D III over the higher megapixel D800 for that reason. I have a feeling they weren't planning to make many large prints like I do. Not sure if they fixed the live view in the 810, but perhaps that could still be an advantage for Canon.


After shooting for nearly 3 years with the 645D I am pretty used to not needing live view and now feel it's a luxury with the 645Z. I do use it often now, but don't need to since I know my lenses well.
Forum: Pentax Medium Format 03-10-2015, 06:48 AM  
Post your medium format photos!
Posted By Ryan Tischer
Replies: 15,567
Views: 2,579,684
lovely image!
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