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Forum: Troubleshooting and Beginner Help 05-09-2019, 01:56 PM  
DA 300 mm with screw drive AF, Camera doesn`t detect focus length
Posted By HarisF1
Replies: 19
Views: 706
Are any of the mount contacts missing? Do they all stick out of the mount plate, and move in when pushed down?
There's a possibility that one of the contacts has lost its spring and therefore is not making electronic contact correctly.
The SDM contacts are also essential - I've managed to run a lens on a single SDM contact with full SDM function but without it my lens refused to communicate with the camera.

Hope these points help.
Forum: Repairs and Warranty Service 04-12-2019, 03:28 PM  
Re-Greasing Pentax-A 35-105
Posted By HarisF1
Replies: 26
Views: 885
Just disassemble the glass. Trust me when I say you don't want to be messing around with the helicoids and mechanisms on these lenses.
Forum: Pentax K-1 03-20-2019, 02:01 PM  
Shutter shock with small primes
Posted By HarisF1
Replies: 48
Views: 2,059
I've experienced shutter shock with a few lenses on both my K-3 and current K-1. The D-FA 28-105 is susceptible to it, as mentioned, but so is the FA 20-35. It's actually really bad!!

My solution is to bump up the ISO or work at a lower speed with greater f-number.
Forum: Photographic Equipment for Sale 03-09-2019, 10:05 AM  
For Sale: SDM to Screwdrive Conversions
Posted By HarisF1
Replies: 231
Views: 33,943
The DA*55 can't be converted as it has no screwdrive. It'll usually be fine as long as you use and exercise it regularly.
Forum: Pentax SLR Lens Discussion 03-09-2019, 10:03 AM  
Screwed over again!
Posted By HarisF1
Replies: 23
Views: 1,365
Raise an eBay returns request instead of opening it up.
Forum: Pentax DSLR Discussion 03-03-2019, 07:43 AM  
The new APS-C silhouette speculation thread
Posted By HarisF1
Replies: 93
Views: 4,924
The only thing in my mind is that it could be mirrorless. That's the only thing I could imagine would look different in a simple silhouette.

Either that or a dual screen layout.
Forum: Pentax SLR Lens Discussion 02-28-2019, 01:47 PM  
K1 II - best legacy budget lens on the best price to IQ value ratio for the lowest $
Posted By HarisF1
Replies: 61
Views: 3,329
The best has to be the SMC A 50mm f/1.7 for its auto aperture and identical optics to the M 50mm. Best wide angle is the Sigma 24mm f/2.8 SW II, being small, sharp and colourful. Best portrait lens at a budget would be the M 100mm f/2.8. Best all round lens combination might include the F 35-70 and 70-210.

Pick up those 5 lenses and you can be proud of your kit.
Forum: Pentax News and Rumors 02-10-2019, 06:28 AM  
HD Pentax-DA★ 11-18mm f/2.8 - some local indoors pre-series test shots
Posted By HarisF1
Replies: 59
Views: 10,887
That's just shake reduction at work.
Forum: Pentax Medium Format 02-10-2019, 06:26 AM  
First Day with my 645Z.........Speechless !
Posted By HarisF1
Replies: 16
Views: 2,380
I had a 645z for a short while recently. It's a mindblowing piece of kit. The amount of detail is staggering.

Really missing it but I needed the cash!
Forum: Pentax SLR Lens Discussion 02-09-2019, 03:39 AM  
HD Pentax-D FA* 50mm f/1.4 AW rebadge as Tokina reviews
Posted By HarisF1
Replies: 6
Views: 968
Excellent reviews as the lens really does excel. It's a shame that the Pentax version doesn't really quite get the plaudits that it deserves simply because of the badge on the body.
Forum: Troubleshooting and Beginner Help 02-08-2019, 12:11 PM  
K-1 camera shake issue
Posted By HarisF1
Replies: 33
Views: 1,941
I've said it before in this topic. It seems like the SR mechanism has a loose fixing or something causing the edge of one part to flop backwards.

Ideally you want the sensor to sit parallel to the back of the lens but a broken part in the SR unit might allow the sensor to move out of alignment.
Forum: Troubleshooting and Beginner Help 02-08-2019, 11:03 AM  
Slightly visible blades at widest aperture
Posted By HarisF1
Replies: 15
Views: 860
It's nothing to do with the solenoid. Congratulations on a very good repair :)

The lens isn't faulty either, it's well within normal working ranges. However if you'd like to change this setting you can always dismantle the lens. I would definitely warn against it as you will then get overexposing at all other aperture settings. I'm speaking from experience.
Forum: Troubleshooting and Beginner Help 02-06-2019, 10:54 AM  
Slightly visible blades at widest aperture
Posted By HarisF1
Replies: 15
Views: 860
The aperture mechanism is a switch (relay). If the blades are visible on the lens at 18mm then I believe this is normal. Even if it's not normal then it is still a lens issue, nothing to do with the camera.
Forum: Troubleshooting and Beginner Help 02-06-2019, 02:31 AM  
K-1 camera shake issue
Posted By HarisF1
Replies: 33
Views: 1,941
The mount may have been hit, causing decentering issues.

Edit: If images are fine on a tripod it could be damage to the SR mechanism.
Forum: Pentax SLR Lens Discussion 01-31-2019, 05:22 AM  
DA* 200mm f2.8 dormant auto-focus
Posted By HarisF1
Replies: 12
Views: 724
To get the lens back into working mode again, some users report that turning the ring manually while attempting autofocusing often helps.

If the lens gets worse then it can always be converted to screwdrive.
Forum: Lens Clubs 01-26-2019, 06:00 AM  
The FA Limited Club
Posted By HarisF1
Replies: 10,361
Views: 1,688,764
Beautiful. So glad you're enjoying the lens :)
Forum: General Photography 01-25-2019, 09:28 AM  
"Equivalence" between formats and lenses...
Posted By HarisF1
Replies: 627
Views: 11,867
When I first started looking for lenses when I got my K-3, I was really surprised as there were no older wide angles available at a decent price. The 18-135 was a cool lens but my next widest was my 28mm Takumar. Looking online showed me lenses that were 4 or 5 times more expensive than the Takumar, and the older 'wide angles' were extremely expensive too.

This didn't make sense to me until I realised how formats changed over time. Had I been a rich kid then maybe I would have never needed to understand equivalence. But I wasn't, and the idea of equivalence has been pretty interesting to me. I'm a thinker too, and always curious so that's why I think it's intriguing. Maybe some people don't want to think, maybe others are happy where they are. It doesn't mean I'm wrong in thinking about equivalence to explain why there 'weren't any really wide lenses in the past'.
Forum: Troubleshooting and Beginner Help 01-13-2019, 10:09 AM  
K1 doesn't AF the DFA 28-105 ED DC WR
Posted By HarisF1
Replies: 9
Views: 549
Have you switched to AF on the body? It's a physical switch on the left side of the body as you look towards the backside.
Forum: Pentax DSLR Discussion 01-12-2019, 03:04 AM  
A study of photographs on flickr
Posted By HarisF1
Replies: 33
Views: 2,155
I'm a terrible tog and I've managed to find myself a cool 645z. Maybe I should balance the arguments by uploading all my crappy shots!
Forum: Pentax K-30 & K-50 01-07-2019, 11:11 AM  
For the engineers out there-- aperture block , or battery failure?
Posted By HarisF1
Replies: 23
Views: 1,463
Same, fixed yet another just the other day. I've given one to my younger brother and will be keeping one for the giggles. Might even stick it in my car with an old lens.
Forum: Pentax K-30 & K-50 01-05-2019, 05:53 PM  
For the engineers out there-- aperture block , or battery failure?
Posted By HarisF1
Replies: 23
Views: 1,463
It's both aperture block and battery/current. The way it works is that a current creates a magnetic field that allows the solenoid to switch states. When the aperture block is failing, the small horseshoe shaped plunger has become magnetised enough so that the solenoid has no affect on it, so it just sits there and the aperture doesn't open.

By filing the plunger you get slightly less magnetic force so it can be moved when the solenoid is activated.

...or if a stronger battery is provided the current produces a field strong enough for the block to work 'normally'.
Forum: General Photography 12-27-2018, 05:53 AM  
Full frame vs the rest, can you see it?
Posted By HarisF1
Replies: 50
Views: 2,506
Yes there's a difference and the full frame K-1 is better than the K-70. You're looking at 36MP vs 24MP, maybe a stop better in terms of noise, more detail in the RAW files, thinner DoF for a given field of view.

It's been discussed to death so there are loads of resources available. Is the K-1 really necessary for most of us? No.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 12-27-2018, 03:49 AM  
Page Six: Pentax not invited to Canon Mirrorless Party? 😭
Posted By HarisF1
Replies: 11
Views: 760
No they merely shotened it.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 12-25-2018, 06:51 PM  
$$$ony A7000?
Posted By HarisF1
Replies: 10
Views: 668
Interesting to consider whether it's the same sensor as in the KP or K-70. It may be one generation newer also.
Forum: Pentax SLR Lens Discussion 12-16-2018, 02:20 PM  
Good place to buy prime lenses in the UK
Posted By HarisF1
Replies: 11
Views: 526
Online, mainly eBay.

There's a camera shop that I've been to, and the main shop for Pentax in the UK are SRS Microsystems based in Watford.
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