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Forum: Pentax DSLR Discussion 29 Minutes Ago  
I'm thinking of selling all my Pentax stuff and moving elsewhere.
Posted By luftfluss
Replies: 100
Views: 2,761
Is it? I honestly have no idea :confused: I mean, any meathead (like me) can push the exposure slider in their PP program of choice, whereas in film developing there are more variables and greater skill required of the user.
Forum: Pentax DSLR Discussion 2 Hours Ago  
I'm thinking of selling all my Pentax stuff and moving elsewhere.
Posted By luftfluss
Replies: 100
Views: 2,761
It's called "ISO invariance" and it is a real thing.

Can't comment further without knowing the context of Tony's statement.
Forum: Lens Sample Photo Archive 16 Hours Ago  
SMC Pentax 500 f4.5
Posted By luftfluss
Replies: 14
Views: 848
Shooting wide open...









50% crop
Forum: Pentax SLR Lens Discussion 16 Hours Ago  
Help Me Understand What Vintage Stuff I Have!
Posted By luftfluss
Replies: 22
Views: 747
Dude, you scored! :)
Forum: Pentax SLR Lens Discussion 1 Day Ago  
Poll: Do you install a UV filter on all of your lens
Posted By luftfluss
Replies: 39
Views: 1,120
Some folks might be interested in this UV filter article: Lens Rentals | Blog
Forum: Pentax DSLR Discussion 1 Day Ago  
I'm thinking of selling all my Pentax stuff and moving elsewhere.
Posted By luftfluss
Replies: 100
Views: 2,761
Pretty much every issue you have raised in this post has been discussed elsewhere on the forum. The claim "Pentax seems not interested in introducing really new stuff" is factually incorrect, as they have released "new stuff", albeit slowly, and that "new stuff" is arguably best-in-class... they have also released a re-formulated old favorite, have a high-end portrait lens on the way, and a photographer with close ties to Pentax has indicated we should expect a new APS-C flagship next year (of course just a rumor).

I could go on, but again, information is available on this forum for those who seek it out.
Forum: Lens Sample Photo Archive 2 Days Ago  
SMC Pentax 500 f4.5
Posted By luftfluss
Replies: 14
Views: 848
Thanks, but I think a plane ticket from Oz to the USA would cost more than the lens. :D

I use an old (free) Velbon Videomate tripod... since what I shoot is generally moving - or fidgeting - I usually have to keep the shutter speed up a bit, so I don't need the ultimate rock-steady tripod.


It's a challenging lens to use for sure, but when you get it right there is certainly a feeling of accomplishment.

(heavy crop)
Forum: Lens Clubs 2 Days Ago  
Adaptall Mount Club (Tamron).
Posted By luftfluss
Replies: 3,810
Views: 633,202
31A day...





Forum: Pentax News and Rumors 3 Days Ago  
CWRailwayman...Denny...RIP
Posted By luftfluss
Replies: 26
Views: 1,852
Oh wow, he logged on to the m4/3 site yesterday... I hope there's easy riding for him in the Great Beyond.
Forum: Post Your Photos! 3 Days Ago  
Nature Baby Bun
Posted By luftfluss
Replies: 7
Views: 223
The cuteness is killing me...
Forum: Lens Sample Photo Archive 3 Days Ago  
SMC Pentax 500 f4.5
Posted By luftfluss
Replies: 14
Views: 848
Forum: Pentax SLR Lens Discussion 3 Days Ago  
IRIX 150 macro vs D-FA 100 WR macro ?
Posted By luftfluss
Replies: 17
Views: 789
I wouldn't say that "macro and af is soo looked down on", it's simply that many of us find that focusing manually* is better for precise focusing on tiny subjects. I actually impress myself with being able to make such minute movements to obtain the focus point I desire.




Also, sometimes the AF noise - or maybe it's the sudden focusing motion of the lens - disturbs said subject.

And sometimes my method is completely different. There are times I'll hold the camera at arm's length and compose through the LCD and use an AF lens that's capable of close focus... because I feel at the time that is the best (or only) way for me to get the shot.





The important thing is to find methods that work for you. I try not only to control my own equipment and technique, but to consider my (usually mobile) subjects, learn what they are willing to tolerate and how best to work with them.



* I'm in agreement with @stevebrot in that I find it easier to move the full kit rather than turn the focus ring as I approach 1:1 magnification.
Forum: Pentax SLR Lens Discussion 3 Days Ago  
IRIX 150 macro vs D-FA 100 WR macro ?
Posted By luftfluss
Replies: 17
Views: 789
This is an excellent point. According to the Lens Database, the MFD of the Pentax is 30 cm and the Irix is 34 cm.
Forum: Pentax K-01 4 Days Ago  
Great Minds Think Alike
Posted By luftfluss
Replies: 10
Views: 820
If it had an EVF and a tilting LCD, no.
Forum: Photographic Industry and Professionals 4 Days Ago  
Landscape Photographer Dale Sharpe killed in freak accident
Posted By luftfluss
Replies: 15
Views: 1,050
Rural highway... the driver was likely going 70+ mph.
Forum: Pentax SLR Lens Discussion 4 Days Ago  
IRIX 150 macro vs D-FA 100 WR macro ?
Posted By luftfluss
Replies: 17
Views: 789
This isn't exactly an apples-to-apples comparison, but Lenstip has reviewed both lenses and in their experience the Pentax is somewhat sharper wide open.

Irix 150 mm f/2.8 MACRO 1:1 Dragonfly review - Image resolution - LensTip.com

Pentax smc D FA 100 mm f/2.8 Macro WR review - Image resolution - LensTip.com
Forum: General Talk 5 Days Ago  
What music are you currently listening to?
Posted By luftfluss
Replies: 4,545
Views: 385,568
Steven Wilson's remix of Jethro Tull's album Aqualung is sooo good...
















You Tube



Forum: Lens Sample Photo Archive 5 Days Ago  
SMC Pentax 500 f4.5
Posted By luftfluss
Replies: 14
Views: 848





Used in conjunction with the PENTAX Helicoid Extension Tube K :


Forum: Non-Pentax Cameras: Canon, Nikon, etc. 6 Days Ago  
Where to leave the masses of ex-mirrorless buyers? phones?
Posted By luftfluss
Replies: 22
Views: 754
Many people over the last few years have decided that conventional social media - Facebook, Twitter, IG, etc - stinks and have left it. And many younger folks prefer social media that is more ephemeral in nature.

I just don't see enthusiast-driven product-based forums like PF going away in the foreseeable future.
Forum: Pentax K-1 6 Days Ago  
Latest tests for K1mkII at Imaging Resource posted 6-18-2019
Posted By luftfluss
Replies: 5
Views: 913
Forum: Pentax DSLR Discussion 6 Days Ago  
What's the draw for other cameras?
Posted By luftfluss
Replies: 57
Views: 2,308
Funnily enough, the Sony A7II has frequently been panned for poor ergonomics, and yet to you it feels "like a Pentax", a brand that has long been cited for providing excellent ergonomics.

Taste is a strange thing.
Forum: Lens Clubs 06-19-2019, 07:36 AM  
300mm plus Lens Club: discuss your long lenses
Posted By luftfluss
Replies: 31,346
Views: 2,895,412
Oh sure, the K 500/4.5 is a CA monster, but its surprisingly sharp performance at very long distance - better than the Tamron Adaptall 400/4 65B, which has a more complex optical formula and ED glass - in addition to the commentary by @Chris_Mak simply had me musing on the very large lens/very long performance correlation. Obviously there's a very small sample size at play, but I do find it interesting.
Forum: Lens Clubs 06-18-2019, 08:15 PM  
300mm plus Lens Club: discuss your long lenses
Posted By luftfluss
Replies: 31,346
Views: 2,895,412
I'm find this and your commentary in a previous post very interesting. Do you feel that the DA 560 excels at long distance shooting because it is somewhat of a telescope design? How far is "long distance"?

I recently acquired an old SMC Pentax 500mm F4.5 which is very large and obviously there was no attempt by the lens designers to make it compact in any way, and while futzing around with it I shot trees at least 300m distant and I was surprised at how decently sharp it rendered the foliage. Perhaps a degradation of distant quality is the price to be paid for more compact tele lens design?
Forum: Lens Clubs 06-18-2019, 02:29 PM  
Adaptall Mount Club (Tamron).
Posted By luftfluss
Replies: 3,810
Views: 633,202
Thanks, guys.





I'm not dedicated enough for focus stacking, I fear :o


The 52BB + Raynox DCR-150 gives me a little better than 1:1 magnification. Because of a little wonkiness with my PKA adapter, when the aperture is set in-camera to f/16 the resultant aperture established by the lens is actually f/13.

My goal in terms of image usability is to have a good-quality photo that displays 2560 pixels on the long side - my recently-deceased Android tablet had a display of 2560x1600, and I decided that the 2560 would be my resolution of choice for jpeg files I upload to Google Photos. If the image happens to be mostly square - like the lady bug pic above - I'll go 1600 pixels on the short side. So as long as I do my job as the photographer the Pentax camera and 52BB allow me considerable room for cropping. The lady bug, hoverfly, and robber fly are crops, while the orchard spider* is the full frame.

* The orchard spider photo is upside-down. When I photographed it, I was prone on the inclined ground and shot upwards maybe 30. I flipped the image horizontally during PP, hence it appears illuminated from underneath.

** During my backyard and backyard-adjacent excursions, I tote a lightweight resin stool with me. This allows me to sit comfortably, rest my elbows on my knees, and focus by moving the camera with a surprising (to me) degree of precision.
Forum: Lens Clubs 06-18-2019, 09:57 AM  
Adaptall Mount Club (Tamron).
Posted By luftfluss
Replies: 3,810
Views: 633,202
52BB + Raynox DCR-150







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