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Forum: Troubleshooting and Beginner Help 07-29-2020, 07:37 AM  
Disappointing ricoh gr iii image quality
Posted By southlander
Replies: 29
Views: 2,103
How are you viewing the images in Lightroom? If in Library or Develop then these are Lightroom’s preview images that are typically only 2 to 4 megapixels, with actual size controlled, from memory, in the Preferences menu item. The default is quite low. So edits can look pretty ordinary with the previews but fine once exported at high resolution. This would be accentuated if there is a mismatch between the preview resolution and your screen resolution as a rescaling is occurring and if your screen is higher res than the preview, that may well get ugly. I personally only judge the final result once I have exported out of Lightroom as a Jpeg at or above my screen’s resolution and view the image full screen using a jpeg viewer app. I use that to determine whether to go back into Lightroom and further edit the image.
Forum: Pentax News and Rumors 07-27-2020, 10:26 PM  
Sticky: An important message from the moderators
Posted By southlander
Replies: 323
Views: 30,667
Full support to the moderators for keeping this forum polite and constructive. Thank you.
Forum: Photographic Industry and Professionals 07-27-2020, 10:19 PM  
Pentax said in video it would use new gen apsc sensor
Posted By southlander
Replies: 119
Views: 9,681
(1) Would need some shutter re-engineering to have shutter parked in open mode.

(2) current mirror only has a smallish semi translucent area equal to AF focus point coverage so some light lost to optical viewfinder but not full frame.

(2) To implement, would need a semi translucent mirror a la what Sony did with their SLT Alpha cameras before Sony went down the mirrorless path. For Pentax this would split much more light between the optical viewfinder and the sensor assuming Pentax avails itself of the much wider array of focus points on sensors with pdaf functionality. Given Pentax desire for best experience from optical viewfinder, could they come up with a light split that gave good optical viewfinder experience while still giving enough light to the sensor for PDAF to work in low light given these sensors are designed for mirrorless (hence no light loss before sensor)? But for Pentax, mirror could still swing up for actual exposure so no loss of light for the recorded image, unlike how Sony implemented SLT.
Forum: Photographic Industry and Professionals 07-27-2020, 09:54 PM  
Pentax said in video it would use new gen apsc sensor
Posted By southlander
Replies: 119
Views: 9,681
I suspect the key change will be the new image processor unit. The current generation unit which no doubt is shared across aps-c, FF and 645 is probably the impediment to further advance of all Pentax cameras. Step up to a latest gen processor with more cores, faster processors, wider data channels, lower nanometer architecture to keep power and heat under control; and suddenly lots of things become possible: better af thru ability to process more sensor points, intelligently calculate and predict subject motions; faster card writes to reduce buffer filling, some AI to improve jpeg engine and noise reduction; 4K video with decent frame rates and better codecs; less clunky ways to rapidly align and better utilise multi frame exposures to improve dynamic ranges. Hopefully USB-C and the option to charge battery via the USB port given USB-Cís higher current capacity.

If they come up with the goods in the new aps-c flagship, then the path to next gen ff and 645 bodies is also opened.

You only have to look at the advances in smart phone processors over the past two years to see how rapidly processor speeds and capabilities have advanced eg this yearís mid range Qualcomm processor broadly matches last yearís flagship and includes dedicated AI module.

Thereís been some discussion that Canon were held up for several years (and criticised for lack of innovation) when they hit the limits of their then current processor. They now have their next gen processor and that has allowed them to release the capability upgrades now coming through their mirrorless ff models.

The challenge for Pentax is to shift the organisation from one where optical and mechanical engineering skills were once king to one where hardware/software engineering skill is now the must have skill to remain competitive. Internally this is just as much a cultural challenge as it will have been to recruit and develop software skills.
Forum: Weekly Photo Challenges 07-26-2020, 02:57 AM  
Caption Contest Sell this vehicle!
Posted By southlander
Replies: 19
Views: 1,175
Stuck at home? Ideal COVID restoration project.
Forum: Troubleshooting and Beginner Help 07-26-2020, 02:50 AM  
K1 and heat will it shutdown?
Posted By southlander
Replies: 15
Views: 916
Sounds like the camera was asked to focus on a dark sky and simply unable to lock focus. Astrophotography and autofocus generally donít go together.
Forum: Pentax SLR Lens Discussion 07-02-2020, 07:51 AM  
DA*60-250 Out of stock?
Posted By southlander
Replies: 64
Views: 2,689
Its not just production that is affected. Both sea and air freight are disrupted. We are all likely aware that the lack of international flights has disrupted air freight. Not so well known is that sea borne container freight is disrupted. Ship lines are cancelling sailings at limited notice to avoid losses on lightly loaded ships so freight forwarders suddenly have to scramble to find alternative sailings for their containers to travel on, and throwing stock replenishment ETA's out.
Forum: Pentax SLR Lens Discussion 07-02-2020, 06:22 AM  
Choosing between the M 28/2.8 and the M 28/3.5
Posted By southlander
Replies: 15
Views: 879
I've perceived some differences in colour rendering. The 3.5 seems really good with blues so great at the beach or sunny blue skies. The 2.8 is good with autumnal colours - reds, browns and oranges.
Forum: Troubleshooting and Beginner Help 07-02-2020, 06:18 AM  
iOS 13.5.1 on iPad has hidden technical details of each photo.
Posted By southlander
Replies: 21
Views: 1,080
Welcome to the barb wire walled garden of Apple.
Forum: Mini-Challenges, Games, and Photo Stories 06-30-2020, 05:49 AM  
Game Single In July 2020
Posted By southlander
Replies: 245
Views: 7,583
I'll stand aside for July but will be watching.

I need to focus in July on getting up to speed with this secretarial role I have taken on.

May be back in August assuming my new acquisition arrives during July. It's being posted from the US so the isopropyl alcohol will be at the ready :(
Forum: Mini-Challenges, Games, and Photo Stories 06-30-2020, 05:42 AM  
Game Single In June 2020
Posted By southlander
Replies: 368
Views: 9,479
Done with the M35-70 for June and most likely permanently. Never felt the love while using this lens.

Probably best at the 70mm end. Down at the wide end there's some field curvature or something going on that often makes the corners mushy and unpleasantly rendered even at F8 or 11. So you didn't see too many wide images posted. Bokeh quality isn't a strong point once you get away from short focus distances.

Hard to focus well with a wide band where the focus confirmation remains on and pixel peeping confirms a softness to edges which is likely baffling the PDAF.

Whether what I experienced is typical of this lens or I have an optically poor copy I don't know. Physically it is in great knick.

A pity, as my limited use with it on a Sony A7 a few years back was much more positive. Unfortunately I no longer have access to a Sony camera to re-test.

---------- Post added 30th Jun 2020 at 10:27 PM ----------

Oh, and apologies for not commenting during June. I don't think I commented on a single image so please no-one feel like you were singled out for a lack of attention. Energy levels have been down this month.

A big thank you to those who commented on my images even though I didn't reciprocate.
Forum: Troubleshooting and Beginner Help 06-30-2020, 05:09 AM  
DA 50mm 1.8 aperture stuck after drop
Posted By southlander
Replies: 10
Views: 703
I'm wondering if the aperture mechanism a little deeper into the lens has come adrift. It's not too hard to get one step further into the lens by removing the 5 screws that hold the mount (noting these will be JIS screws not Phillips Head). There will be (or should be) a spring attached to the aperture mechanism. See if this is in place and not dislodged or jammed in something. Assuming the mechanism is somewhat similar to the M series lenses I have played with, the spring simply hooks onto a little post at each end so it could have jumped off. You should also be able to move the aperture lever with the mount removed and follow transfer of its motion. Before disassembling, look at some of the posted guides to ensure the little electrical communication balls don't go everywhere.

Perform your disassembly over something like a folded tea towel. If something drops out it is less likely to bounce away into the far and hard to search recesses of your room.
Forum: Mini-Challenges, Games, and Photo Stories 06-27-2020, 04:59 AM  
Game Single In July 2020
Posted By southlander
Replies: 245
Views: 7,583
I'd like to see either the K30 as I've seen very few images from this well regarded lens, or the K135/2.5. I've had my trigger finger hovering over a K135/2.5 or two on Fleabay even since I used the M120 in May's SIC. But then a hard to find autofocus 135 popped up on the forum about a week ago and the itchy trigger finger hit buy on that instead. So I'm interested to see what I ended up turning down.
Forum: Mini-Challenges, Games, and Photo Stories 06-27-2020, 04:49 AM  
Game Single In July 2020
Posted By southlander
Replies: 245
Views: 7,583
The 200 doesn't get much love in the reviews but I actually like the way it renders. It requires effort to get focus spot on otherwise the CA in the 200's oof area creeps into the subject area and reduces sharpness.

A cpl filter in daylight conditions also seems to help with contrast and saturation.
Forum: Pentax SLR Lens Discussion 06-27-2020, 04:28 AM  
How many 50mm lenses do you own? Favorite? What have you let go?
Posted By southlander
Replies: 306
Views: 29,477
I understand the K55 F2 is an aperture limited version of the F1.8 made simply to meet a different marketing pricepoint.
Forum: Welcomes and Introductions 06-27-2020, 04:19 AM  
I am very grateful to have been invited to participate in Pentax Forums.
Posted By southlander
Replies: 7
Views: 718
And yet another welcome from Australia!
Forum: Mini-Challenges, Games, and Photo Stories 06-24-2020, 01:02 AM  
Game Single In June 2020
Posted By southlander
Replies: 368
Views: 9,479
Well I've also bought something.

Acquired from the forum temptations section.

But I doubt it will find its way across the ocean before the start of July.
Forum: Pentax SLR Lens Discussion 06-23-2020, 08:15 PM  
Short telephoto for landscape/architecture with a film SLR
Posted By southlander
Replies: 25
Views: 1,423
I also shot with a M120/2.8 on full frame during this May’s Single in challenge, the same month ihieramo used his M120/2.8.

I agree with ihieramo’s comments. The M120 is a pleasure to use: light, compact and a built-in hood. After fine tuning the Apply All focus adjustment on my K-1 the focus confirmation beep on the K-1 was quite reliable all month for sharp focus.

Like iheiramo I found F4 an ideal aperture. F4 clears away a slight softness that the lens has wide open while the bokeh remains nice (but with specular highlights revealing the aperture shape). It simply renders nicely and can create some lovely 3D pop with the right subject.

There is some purple fringing but more controlled than some of the other film era manual glass and generally cleans up quickly in post processing. Probably not an issue shooting on film. Longitudinal aberations are considerably better managed than the M135/2.8.

Ok but not fabulously sharp at infinity - l think Pentax prioritised short to mid-distance sharpness with the short tele lenses developed with portraiture in mind.

I really enjoyed using the M120/2.8 during the May challenge. As the June challenge draws towards a close with my use of a M series zoom, I miss using the M120.

Forum: Pentax SLR Lens Discussion 06-23-2020, 02:25 AM  
DA*60-250 Out of stock?
Posted By southlander
Replies: 64
Views: 2,689
I use the DA*60-250 on my K-1 with the baffle removed. While quite good by F8 almost all the way to the extremities, wide open the edges left and right on landscape orientation do somewhat fall apart. I would agree with Ricoh that while a very good APS-C lens, its not up to * standard on full frame. That’s not to say I don’t enjoy the 60-250 on FF. I do, but need to compose in a way that recognises the wide open limitations.
Forum: Pentax DSLR Discussion 06-22-2020, 04:10 AM  
Eye-fi SD card
Posted By southlander
Replies: 7
Views: 738
I have but Eye-fi basically killed off most of their cards due to unresolvable security issues. The cards need access to a central server for configuration. This no longer exists so the cards are essentially bricked afaik.
Forum: Mini-Challenges, Games, and Photo Stories 06-17-2020, 04:51 AM  
Game Single In June 2020
Posted By southlander
Replies: 368
Views: 9,479
I'm off to the country-side for the next 5 or so days, staying away from any townships. Supposedly there is internet there via NBN satellite so I may be able to keep posting, maybe not.
Forum: Mini-Challenges, Games, and Photo Stories 06-09-2020, 05:57 AM  
Game Single In June 2020
Posted By southlander
Replies: 368
Views: 9,479
Nine days in and the M35-70 doesn't seem to be as nice on the K-1 as I recalled its prior use on a Sony A7.

Needs quite a bit of help from the Lightroom clarity slider to get images to 'pop'. Whereas the M120 last month I found really didn't want any much if any clarity added, just a bit of the texture slider. Mind you I was looking at jpegs off the A7 as I didn't have a LR version at the time that could convert Sony RAWs. So Sony's jpeg engine was doing most of the PP for me.

And the resolution isn't quite as I remember. I suspect the resolution matched the 24 megapixel sensor and AA filter in the A7 quite well but the 36 megapixels of the K-1 is a tougher taskmaster.

And I got quite hooked on the M120's shallow DOF and generally nice bokeh. Slower 35-70mm focal length is not the same.

But will persist for now.

Oh, and I have some sort of login issue with Flickr which has stopped me commenting. Will try to sort that out tomorrow.

---------- Post added 9th Jun 2020 at 10:45 PM ----------

Oh, and I fixed my link problem. New month, new Google album. Forgot to flick the switch to allow public viewing. Doh!
Forum: Sold Items 06-09-2020, 02:59 AM  
For Sale - Sold: Sigma APO 100-300mm F4 EX DG
Posted By southlander
Replies: 7
Views: 924
Hi there. Definitely interested. PM sent.
Forum: Post Your Photos! 06-04-2020, 04:57 AM  
Landscape Taiaroa Head Lighthouse
Posted By southlander
Replies: 15
Views: 547
What, no albatross?
Forum: Mini-Challenges, Games, and Photo Stories 06-01-2020, 06:26 AM  
Game Single In June 2020
Posted By southlander
Replies: 368
Views: 9,479
Well. Not sure what lens I will use yet.

The M35-70/2.8-3.5 is a bugger to focus via the AF confirmation beep. Bringing the focus up from MFD (my usual manual focus technique) the front focussing is beyond what I can adjust on the focus adjustment menu. But if I come down from infinity and stop on the beep then at -10, its almost ok, mostly. But still a bit inconsistent.

I've previously used this lens on mirrorless cameras, particularly my son's now sold Sony A7. Focussing off the sensor and using the electronic viewfinder's magnification I never had focus issues. But with PDAF on DSLR, wow, another story. The range of focus ring movement while the confirmation light is still active is huge, probably >1/4 inch of rotation.

Not sure if I want to persist or not. I'll decide tomorrow. When it is focussed correctly, the images look ok. But a month of focus hit and misses will quickly wear thin. For 1 June I've also taken some quick shots with the M35/2 as a contingency.
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