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Forum: Mini-Challenges, Games, and Photo Stories 9 Hours Ago  
People and their cameras!
Posted By Jonathan Mac
Replies: 2,215
Views: 224,809
"No... when I said 'you need a hood', I meant for the lens!!" :D
Forum: Lens Clubs 9 Hours Ago  
Theory on DA 35mm ltd 'greatest lens ever' (?) tag
Posted By Jonathan Mac
Replies: 564
Views: 163,981
Ha ha - I can see you've been enjoying it :D
Forum: Lens Clubs 9 Hours Ago  
The Sigma Lens Club- All lenses
Posted By Jonathan Mac
Replies: 2,038
Views: 312,706
Sigma 17-50mm f/2.8


ITLY3395b
by Jonathan MacDonald, on Flickr


ITLY3426a
by Jonathan MacDonald, on Flickr


ITLY3409a
by Jonathan MacDonald, on Flickr
Forum: Pentax SLR Lens Discussion 2 Days Ago  
What Is The Deal With Plastic?
Posted By Jonathan Mac
Replies: 49
Views: 1,707
I've recently been looking into the possibility of getting a Fuji 16-50mm kit lens for my Fujifilm camera, and like a couple of Pentax lenses, it has a plastic mount. While I haven't come across any cases of the Pentax ones breaking, I have read a report or two of this happening on the Fuji.

Plastic, like any material these days (even steel), comes in many different qualities. I'd certainly prefer metal over plastic, especially when it comes to a mount, but in small lenses I wouldn't out-right avoid a lens purely due to it having a plastic mount. I would however never buy a plastic mount big zoom lens, I think there's a DAL 55-300mm like that.

I know that some people have transplanted a metal K-mount onto the DAL 35mm f/2.4 in order to gain a metal mount, but I don't know how easy it is or if it would really matter in a lens so small and light.
Forum: Pentax Medium Format 2 Days Ago  
Stripes on negatives
Posted By Jonathan Mac
Replies: 13
Views: 339
I don't see any stripes, but I have the forum set to down-scale images to a certain max size as some people routinely post enormous shots. Perhaps you could post a crop that shows it more clearly?
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 2 Days Ago  
Fuji X series club
Posted By Jonathan Mac
Replies: 465
Views: 43,216
Has anyone here looked into the various options for AF adapters to use EF mount lenses on Fuji?

Now that several of them have been released, I think it's time to start looking into which one is best. In my case that means decent build quality, accurate AF (of course) and the ability to mount all of my three EF lenses. The 50/1.8 STM I'm sure is a given as it's so popular. The Tammy 28-75/2.8 I imagine can probably be handled as it's fairly common, but the Sigma super-wide 24/2.8 is what most worries me as it's quite old and not so common. I haven't seen any of these adaptors listing the Sigma as tested and would want to be sure that it would work, or at the very least to buy an adaptor whose manufacturer seemed committed to firmware updates to expand the number of lenses which work.

* * *

I'm starting to warm to keeping a wide angle lens on the camera for general carrying about in case I see a shot.

X-M1 and 18mm f/2


DSCF3890
by Jonathan MacDonald, on Flickr


Closed
by Jonathan MacDonald, on Flickr
Forum: Mini-Challenges, Games, and Photo Stories 2 Days Ago  
Thematic Brenizer Method photos
Posted By Jonathan Mac
Replies: 150
Views: 14,518
In theory you should use manual mode always, because the exposure needs to be the same for each shot so that they can be stitched together without changes in exposure (such as a suddenly less exposed, more blue sky).

In practice it might be possible to vary exposure slightly over a Brenizer, but I wouldn't leave it to the camera's Av mode to decide how much, I would adjust manually either by varying shutter speed or by shooting RAW and developing them slightly differently. I've done the latter with panoramas but not with Brenizers. With Brenizers, since you've got several rows of shots, varying the exposure in this way would be quite complex - you'd need to know which images were from which row in order to make sure they fit in with the images on each of the four sides.
Forum: General Talk 2 Days Ago  
Your latest acquisition
Posted By Jonathan Mac
Replies: 12,568
Views: 855,625
Clearly you don't have enough lenses ;)
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 3 Days Ago  
Fuji X series club
Posted By Jonathan Mac
Replies: 465
Views: 43,216
X-M1 and 18mm f/2


Roof
by Jonathan MacDonald, on Flickr


Aluche
by Jonathan MacDonald, on Flickr
Forum: General Talk 4 Days Ago  
Your latest acquisition
Posted By Jonathan Mac
Replies: 12,568
Views: 855,625
Those stickers are very cool - I had no idea such things existed.
Forum: Lens Clubs 5 Days Ago  
The Sigma Lens Club- All lenses
Posted By Jonathan Mac
Replies: 2,038
Views: 312,706
17-50mm f/2.8


ITLY5217b
by Jonathan MacDonald, on Flickr


ITLY5207a
by Jonathan MacDonald, on Flickr
Forum: General Talk 5 Days Ago  
Your latest acquisition
Posted By Jonathan Mac
Replies: 12,568
Views: 855,625
That's cheap for an M 40/2.8 - I usually see them for between 70 & 90.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 6 Days Ago  
Fuji Predicts Canon & Nikon Will Loose 50% of Their Current Market Share
Posted By Jonathan Mac
Replies: 57
Views: 1,559
I think Fuji are over-estimating the ability of themselves and Sony to overcome the main reason that people buy Canon or Nikon at all - the name on the camera.

DSLR/mirrorless camera owners who look into specs, pros and cons etc are in the minority when compared to those who choose based on "everyone knows Canon/Nikon are the best" or those who just swallow what the ignorant salesperson feeds them.
Forum: Lens Clubs 6 Days Ago  
The Sigma Lens Club- All lenses
Posted By Jonathan Mac
Replies: 2,038
Views: 312,706
Sigma 17-50mm f/2.8


ITLY4848b
by Jonathan MacDonald, on Flickr


ITLY4842a
by Jonathan MacDonald, on Flickr
Forum: Mini-Challenges, Games, and Photo Stories 6 Days Ago  
Panorama-orama - Post your Panos
Posted By Jonathan Mac
Replies: 1,568
Views: 136,342
This is a stitched panorama of eleven individual shots of the Trevi fountain in Rome. I shot this in an arc so that I'd be able to compensate for perspective distortion in post, though I missed out on the water section of the fountain I think it worked pretty well. I'll need to remember that technique in the future when taking shots like this, which are low down and very close.

For comparison, the second shot is a single image taken at 17mm (the widest I could go) from the same spot.

The fountain was mobbed, and that was in January (low season). There were a lot of police around so I had to take great care with my gear (and my wallet) as I took their presence to be indicative of the presence of pick-pockets.

Sigma 17-50mm f/2.8 and K-3.


Trevi fountain panorama 1b
by Jonathan MacDonald, on Flickr


ITLY5128a
by Jonathan MacDonald, on Flickr
Forum: General Talk 6 Days Ago  
Your latest acquisition
Posted By Jonathan Mac
Replies: 12,568
Views: 855,625
I hear you on the older trackpad. I just changed my work laptop from a T430 (around 3kg of chunkiness) to a T470 (around 1.5kg and nice & slim) and I was lucky to skip the in-between models which a lot of my co-workers have, mostly because the buttonless trackpad is horrendous. With the T470 I finally feel like I got a laptop that really performs well enough to do the job. The touch screen is nice but makes me wish the computer could be turned into a tablet. And of course it doesn't hurt that my boss had an extra few RAM chips not in use so I got an upgrade to a total of 24 gigs :)



I can't believe that with your LBA this is the first time you've owned a DA 35mm macro, surely not?? Mine's just an SMC model but it's amazing.
Forum: Pentax Film SLR Discussion 05-12-2018, 11:29 PM  
Gear P0rn - post it if you got it.
Posted By Jonathan Mac
Replies: 5,456
Views: 622,378
This thread is turning into the camera freak show thread :)
Forum: Pentax Film SLR Discussion 05-11-2018, 11:48 PM  
:cool: Lets see those ''film'' shots
Posted By Jonathan Mac
Replies: 16,955
Views: 2,022,590
I believe that the other cameras in the K series essentially have the Spotmatic innards but the K2 (and K2 DMD) were new designs which are different.
Forum: Pentax Film SLR Discussion 05-11-2018, 11:38 PM  
Post your B&W Film shots
Posted By Jonathan Mac
Replies: 7,101
Views: 725,125
Here are a few more from Tuscany. DSLR scans using the K3 and DA 35mm limited. Original photos taken with MX on Delta 400.


IMG_6739b
by Jonathan MacDonald, on Flickr


IMG_6740b
by Jonathan MacDonald, on Flickr


IMG_6732b
by Jonathan MacDonald, on Flickr


IMG_6725b
by Jonathan MacDonald, on Flickr
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 05-11-2018, 11:32 PM  
Fuji X series club
Posted By Jonathan Mac
Replies: 465
Views: 43,216
I have only limited experience with Minolta lenses but a couple of the ones I have are superb - this 35mm and the 50mm f/1.7. I was less impressed with the famous 35-70mm f/3.5 and much less impressed with the 24mm f/2.8 and sold them both off.

Does anyone here have any experience with the 16-50mm f/3.5-5.6 OIS (first version)? There's one for sale locally and it would give me the flexibility of a zoom, albeit a slow one. My Pentax kit lens only gets used for adverse conditions (WR) but the Fujinon doesn't have that advantage, though from all reports it's optically very good indeed. I'd go for the faster 18-55mm but it costs three times as much on the used market.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 05-11-2018, 01:22 AM  
Fuji X series club
Posted By Jonathan Mac
Replies: 465
Views: 43,216
X-M1 with Minolta Rokkor 35mm f/2.8 wide open. I think at f/2.8 this lens is as sharp as the DA 35mm limited.


City flowers
by Jonathan MacDonald, on Flickr
Forum: Pentax Film SLR Discussion 05-11-2018, 01:18 AM  
Film version of "Single in..."?
Posted By Jonathan Mac
Replies: 33
Views: 984
Some films are hard to find in some areas, others are very expensive in some areas. Some people will have more light than others depending on the season and location. Some of us also have significant stashes of expired film they need to work through before buying new. There are some films I've tried and would never buy again (Foma) so I'm not going to spend money on them. And that's not getting into formats - some people only shoot MF or LF, others only small format, others a mix...

I'd suggest that if any limitations are put on film that it be simple colour or B&W, nothing more. Beyond that the "single in" portion can be limited to a single roll of film, a single camera (obviously, though it's technically possible sometimes to switch) and a single lens.
Forum: Mini-Challenges, Games, and Photo Stories 05-11-2018, 01:09 AM  
Thematic Brenizer Method photos
Posted By Jonathan Mac
Replies: 150
Views: 14,518
I've very occasionally had problems stitching with ICE, especially early on. I can think of two possible reasons for this - the first is that there isn't sufficient overlap between shots for the program to see that they should be stitched together, so that can be remedied by making sure you have more. Generally a minimum of 30% overlap is recommended. The other is that out of focus areas by their nature lack the details that the stitching program uses to know which images to stitch together, so I suspect some failures I've had were because they contained only out of focus areas which the program couldn't stitch together.
Forum: Pentax Film SLR Discussion 05-11-2018, 12:51 AM  
:cool: Lets see those ''film'' shots
Posted By Jonathan Mac
Replies: 16,955
Views: 2,022,590
Sorry to hear that. Isn't it worth at least trying to get it fixed?
Forum: Lens Clubs 05-09-2018, 10:18 PM  
The M Club!
Posted By Jonathan Mac
Replies: 6,593
Views: 965,269
I don't have any repair experience of sticky apertures yet but a helpful forum member recently sent me some instructions on how to fix the sticky aperture on a Vivitar zoom I have, so I think that will be my first try. Every lens is different and I understand that aperture leaves can be tricky to get back into position and you have to be very, very gentle with them.

I understand this is a common problem for this specific lens. I was lucky and my copy doesn't suffer from it. You might want to make an enquiry at some local repair places to see roughly how much they would charge for such work.
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