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Forum: Pentax Medium Format 02-19-2021, 03:56 PM  
Post your medium format photos!
Posted By desertscape
Replies: 16,065
Views: 2,648,663
Nice shot Tuco. Your B&W work is some of the best in the nation.
Forum: Pentax Medium Format 02-18-2021, 05:44 PM  
Post your medium format photos!
Posted By desertscape
Replies: 16,065
Views: 2,648,663
Distant lightning over the Santa Rita Mountains and Tucson, Arizona, 600mm Takumar, f/16, Velvia 100, cropped.
Forum: Pentax Medium Format 01-31-2021, 04:46 PM  
Post your medium format photos!
Posted By desertscape
Replies: 16,065
Views: 2,648,663
Nice B&W shot Matt.

Here's a 67 shot from last May, 165 LS with tubes, Velvia 50, Arizona Rainbow Cactus.
Forum: Pentax Medium Format 01-28-2021, 03:35 PM  
Evaluation of 3 Lens at 200mm
Posted By desertscape
Replies: 6
Views: 858
You might want to compare these lenses at f/5.6 rather than f/11 since the diaphragm will reduce aberrations when stopped down to f/11. You're not going to see a lot of diference. To really see their weakness, try opening them up to f/5.6.
Forum: Pentax Medium Format 01-27-2021, 03:30 PM  
Looking to join the Pentax family with a Pentax 67. Advice needed
Posted By desertscape
Replies: 47
Views: 2,343
This zoom is indeed amazing, with no degradation in image quality compared with the primes. It is almost as sharp as the 55mm latest. It has near zero distortion and no vignetting. I bought mine new when it was released many years ago but its price has dropped significantly since. Its f/32 makes it great for landscapes when max DOF is required.
Forum: Pentax Medium Format 01-23-2021, 03:26 PM  
Looking to join the Pentax family with a Pentax 67. Advice needed
Posted By desertscape
Replies: 47
Views: 2,343
The old 300mm is actually fairly sharp with little chromatic issues and can be used for portraits handheld. On a tripod, it is a problem. Its DOF scale it not very accurate either. The 200 Takumar design is a modified triplet and does not close focus very well, while the Pentax version is an Ernostar design that is sharper than the Takumar and does better for portraits.
Forum: Pentax Medium Format 01-22-2021, 01:17 PM  
Looking to join the Pentax family with a Pentax 67. Advice needed
Posted By desertscape
Replies: 47
Views: 2,343
Don't underestimate the utility of the 150 Takumar f/2.8 for portraits. It is very affordable now. The 165 f/2.8 is also a contender against the expensive 105.
Forum: Pentax Medium Format 01-20-2021, 11:25 AM  
Pentax 67 Frame Not Advancing - Halfway through Roll
Posted By desertscape
Replies: 4
Views: 394
It could be the frame counter mechanism that uses a roller near the takeup roll.
Forum: Pentax Medium Format 01-20-2021, 11:21 AM  
Looking to join the Pentax family with a Pentax 67. Advice needed
Posted By desertscape
Replies: 47
Views: 2,343
The brighter finder in the 67II was due to both the new prism coating and the multi-coating used on the focusing screens. The old screens were not anti-reflection coated. The 67II screens are pretty expensive though.
Forum: Pentax Medium Format 01-19-2021, 10:07 PM  
Looking to join the Pentax family with a Pentax 67. Advice needed
Posted By desertscape
Replies: 47
Views: 2,343
The non-metered prism for the 67II is brighter than the ones made for the 6x7 and 67 and will fit on the older models. It has silver reflective surfaces vs aluminum ones. The AE prism for the 67II will not work on the older models. It you are going to get a TTL prism, use a gray card to meter with it.
Forum: Pentax Medium Format 01-19-2021, 02:32 PM  
Looking to join the Pentax family with a Pentax 67. Advice needed
Posted By desertscape
Replies: 47
Views: 2,343
I own a non-MLU 6x7 (and MLU ones too) and use it for landscpes successfully. It turns out that the shutter is more of a problem than the mirror as far as vib is concerned. Large tripods are required for this camera, mostly due to its shutter kick. There are still some of these non-MLU cameras available in near mint condition and can be an affordable way to get into this system. Can't recommend the TTL prisms that are this old however, as they do not age well and become inaccurate. The 67 version would be a safer bet, but with a much higher price tag. I would not ignore the non-MLU cameras though.
Forum: Pentax Medium Format 01-15-2021, 03:50 PM  
6x7 - film advance lever is stuck and the shutter depresses with no effect
Posted By desertscape
Replies: 5
Views: 541
Make sure that your shutter speed dial is not between speeds.
Forum: Pentax Medium Format 01-02-2021, 03:49 PM  
Pentax 67 film not winding fully on to take up spool after 10exp
Posted By desertscape
Replies: 2
Views: 482
It could be the 120/220 switch and mechanism. Try putting it on the 220 setting and see how it behaves.
Forum: Pentax Medium Format 01-02-2021, 10:32 AM  
645z Preferred Portrait Lens
Posted By desertscape
Replies: 25
Views: 1,648
The 90mm f/2.8 that was made for the 67 (the Pentax, not the Takumar) is much overlooked due to the fame of the 105. But it is the same optical design type (Double Gauss) and much cheaper. It's a bit short for portraits on the 67 but fine on the Z.
Forum: Pentax Medium Format 12-29-2020, 12:35 PM  
Kenko 2x teleconverter for 6x7?
Posted By desertscape
Replies: 5
Views: 537
Have never tried the Kenko but given how inexpensive the Pentax 2X is, why bother with the Kenko. The gray version from Pentax is pretty good. The 1.4X is even better.
Forum: Pentax Medium Format 12-23-2020, 04:11 PM  
Can Anyone Help Me Pick The Next Lens For My Pentax 67II?
Posted By desertscape
Replies: 10
Views: 767
You have chosen wisely in what you presently own for landscape work, as they have adequate DOF for that endeavor. The 75 shift does OK for architecture but it also does well in landscape work due to its f/32 depth and shift ability. It is proven in macro work as well, with tubes. The only addition I would recommend is the 300 EDIF, a proven winner. It uses low dispersion glass in an attmept to improve the Longitudinal Chromatic that was seen in the 300 Takumar. The EDIF lens is not a true telephoto design like the Takumar, therefore it is a bit longer. This was done to improve image quality.
Forum: Welcomes and Introductions 12-03-2020, 04:42 PM  
New Pentax 67II Shooter From LA!
Posted By desertscape
Replies: 8
Views: 409
Welcome and be aware that there is a small space on this forum dedicated solely to the 6x7 family of cameras. Not a huge amount of traffic but lots of experience. Heavy Pentax - for 6X7 format users - PentaxForums.com
Forum: Pentax Medium Format 11-29-2020, 05:05 PM  
Post your medium format photos!
Posted By desertscape
Replies: 16,065
Views: 2,648,663
Thanks! I've been shooting macro work with the 6x7 for 30 years now.
Forum: Pentax Medium Format 11-26-2020, 05:36 PM  
Post your medium format photos!
Posted By desertscape
Replies: 16,065
Views: 2,648,663
I mostly use the 90-180 for macro work because it has the right focal length, the right stops and the zoom gives me latitude when framing. Fixed focal length lenses can require a lot of tripod adjustments when doing macro work, but not the zoom. This zoom with tubes is a proven combination for macro work.
Forum: Pentax Medium Format 11-26-2020, 12:04 PM  
Post your medium format photos!
Posted By desertscape
Replies: 16,065
Views: 2,648,663
I have had the 90-180 for many years now and agree that f/45 can be a problem. But on the positive side, I have used it on some macro work at f/45 and the images were published. You just can't enlarge them like the f/11 work. I can't recommend landscape work at f/45 with this zoom.
Forum: Pentax Medium Format 11-25-2020, 01:16 PM  
Pentax 6x7: White vs Black text
Posted By desertscape
Replies: 9
Views: 650
My older body (non-MLU) is white while my two newer MLU bodies are black.
Forum: Pentax Medium Format 11-25-2020, 10:14 AM  
Post your medium format photos!
Posted By desertscape
Replies: 16,065
Views: 2,648,663
Thnaks! Using this lens in general is difficult due to its weight. Then there is the challenge of CA and shutter vib to consider. But it can be used successfully.



Be aware that the chromatic in this lens will affect your shots, even in B&W, as it will make the edges of objects slightly soft. Of course, it is worse with color film. You are quite lucky to find the outer bay tubes, as they are probably the rarest accessory for the system. I am lucky to have a set of mint ones. The 600 can be very sharp once you get it figured out.
Forum: Pentax Medium Format 11-24-2020, 09:45 PM  
Post your medium format photos!
Posted By desertscape
Replies: 16,065
Views: 2,648,663
Thanks. The helicoid is the variable tube for macro work. The 600 is a strange lens. Massive chromatic at f/4 but it calms down a lot by f/13. Technically it is afflicted by spherochromatism. Beyond f/13 it is quite sharp and the chromatic is near zero by f/22. I use it for birds, lightning and sunsets. For birds it does OK once you realize that shutter vib can really affect this lens. Here's a bird shot with the 600 + 2x converter, cropped.
Forum: Pentax Medium Format 11-24-2020, 09:30 PM  
Post your medium format photos!
Posted By desertscape
Replies: 16,065
Views: 2,648,663
I don't use the leaf shutter on the 165 when shooting macro work with the helicoid or other tubes.
Forum: Pentax Medium Format 11-24-2020, 06:12 PM  
Post your medium format photos!
Posted By desertscape
Replies: 16,065
Views: 2,648,663
Thanks. I used the helicoid tube + the #2 tube. The 165 is my favorite lens for macro work but use the 90-180 zoom also. Both are proven.
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