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Forum: Lens Sample Photo Archive 1 Day Ago  
Pentax DA 70mm f/2.4 Limited samples
Posted By aaacb
Replies: 75
Views: 44,302
This is to show flare resistance, there is a bit around the sun but contrast remained very good.


Forum: Mini-Challenges, Games, and Photo Stories 1 Day Ago  
Thematic Into the Fog - Show Your Fog Shots
Posted By aaacb
Replies: 310
Views: 30,066


Not sure if this should be counted as fog or clouds, but it was pouring over the mountain and a few minutes after I shot it it covered the part you can see here
Forum: Mini-Challenges, Games, and Photo Stories 1 Day Ago  
Thematic Post Your Cloudscapes
Posted By aaacb
Replies: 2,059
Views: 91,447
Forum: Mini-Challenges, Games, and Photo Stories 1 Day Ago  
Just Black and White-ur B/W Monochrome photos here
Posted By aaacb
Replies: 16,387
Views: 1,096,750

k10d, da21
Forum: Pentax DSLR Discussion 1 Day Ago  
The K10D Club!
Posted By aaacb
Replies: 4,270
Views: 388,197


w/ da40
Forum: Mini-Challenges, Games, and Photo Stories 1 Day Ago  
Your Pet A Day.... (post up!)
Posted By aaacb
Replies: 9,165
Views: 717,019
Forum: Troubleshooting and Beginner Help 1 Day Ago  
DA 35 Significantly Overexposes Shots
Posted By aaacb
Replies: 12
Views: 519
In the table photos, the second one looks much better to me, the first is significantly underexposed. And while the last one is overexposed, the first one looks quite a bit underexposed to me. But it's a dark corner with sunny windows in the background, the contrast is very high to expect even nice exposure straight out of camera.

Here are two tests you could perform. For both, mount the camera on a tripod, or if you don't have one, set it on a table. Just make sure that the scene stays as much the same as possible. The lighting in your first shot is roughly stable since it's artificial, but the framing changed. Sunlight is only reliable if the cloud cover doesn't change during your tests. Also make sure the ISO/shutter are within the range of obtaining a good exposure (nothing red/flashing).

To test for aperture movement issues (aside from looking at it as you take photos):
1) switch to Av, take a photo at f2.4 (the widest); this won't require the aperture to move at all, and should be exposed correctly
2) stop down to f8, and check that the two histograms look similar

If the aperture lever is moving fine, I'd try:
1) Mount the kit lens (18-55), set the camera to P
2) Take a photo, write down the exposure parameters (shutter, aperture, iso)
3) Mount the DA 35, switch to M mode, and set the same exposure parameters; the photo with the prime may look slightly brighter because it's a lens with fewer elements, so it loses less light with internal reflections assuming the coatings are similar. But the difference should be barely noticeable, nothing dramatic.

About metering:
Matrix metering is usually better balanced overall unless you need something very specific with spot metering. Center metering may be more familiar to users of old cameras, and it's the only choice with manual lenses, but it's less accurate than matrix in difficult light (your second example). Manual exposure for the sake of it is certainly not a "pro" thing, whatever that means. M has its purposes but also drawbacks, if you're going to use it, guessing exposure is not that easy, and it's better to pay close attention to what the meter says.

---------- Post added 10-14-18 at 01:36 PM ----------


Yes, that is a problem, they should be operating the same. The whole aperture mechanism relies on the fact that the lever has a spring to close it as far as the camera will let it go. I only noticed this point you made after typing my long response above :)
Forum: Pentax SLR Lens Discussion 2 Days Ago  
55-300 PLM and... Help me spend my money?!?
Posted By aaacb
Replies: 49
Views: 1,168
The 55-300 plm is a nice lens. I pair mine with the 16-85 or with a couple of limited primes (15+21 or 40). I got my 16-85 when it was on sale and closer in price to the 18-135. If I were buying a new camera too and didn't have the 16-85, I'd probably go with the 18-135 since I have the 15mm for wider shots and there are kit discounts (?). 16mm vs 18mm is significant, but only if it matters to you.
Forum: Mini-Challenges, Games, and Photo Stories 3 Days Ago  
Alphabet Race (a very quick game)
Posted By aaacb
Replies: 42,648
Views: 1,538,456
Rock

Forum: Mini-Challenges, Games, and Photo Stories 3 Days Ago  
Thematic Post your waterfalls and moving water.
Posted By aaacb
Replies: 1,495
Views: 103,588
Forum: Mini-Challenges, Games, and Photo Stories 4 Days Ago  
Thematic Bad Weather Makes Good Pictures
Posted By aaacb
Replies: 335
Views: 17,863
Forum: Mini-Challenges, Games, and Photo Stories 4 Days Ago  
Thematic The Very Essence - Show me your abstracts!
Posted By aaacb
Replies: 1,272
Views: 89,929
Forum: Mini-Challenges, Games, and Photo Stories 4 Days Ago  
Thematic Post your waterfalls and moving water.
Posted By aaacb
Replies: 1,495
Views: 103,588


Another waterfall from the same hike as the one above.
Forum: Lens Clubs 4 Days Ago  
135mm lens club
Posted By aaacb
Replies: 1,632
Views: 384,093
M 135 f3.5, shot on Ektar last spring

Forum: Mini-Challenges, Games, and Photo Stories 4 Days Ago  
"I Spy" Photo Challenge
Posted By aaacb
Replies: 28,822
Views: 1,281,437
I spy repeating squares

Forum: Pentax SLR Lens Discussion 4 Days Ago  
Feel the need to use my Lee filters, but no-go on the D-FA 15-30...
Posted By aaacb
Replies: 17
Views: 453
Another option is to get a prime that would work for your current filter set. Would you ready need 15mm, in which case it may be better to have the versatility of a zoom and those large filters, or just something wider than 24mm, say 20mm?
Forum: Pentax K-1 4 Days Ago  
Use of filters and their need and affects on modern DSLRs
Posted By aaacb
Replies: 22
Views: 845
I use polarizing, ND, and square graduated ND filters.

Sometimes it's about getting a shot that would be tricky or not the same with pp alone. For example when it has to be a single exposure due to movement, or when lifting the shadows leads to excessive noise for single image shots. Polarizers can't be replicated to add details seen under reflecting surfaces.

But it's more that I like the workflow when I don't have to do a lot of multi-image editing, I'd rather fiddle with filters than in pp.
I started using nd grad filters because I wanted to be able to shoot nicer landscapes on film, then I continued to use them for digital.

That being said, for simple static landscapes I often use the in camera hdr, do all adjustments from the raw file, and leave most filters in the bag.
Forum: Pentax News and Rumors 4 Days Ago  
Guy says he hasn't taken his Tokina Opera off his D850 in 3 months
Posted By aaacb
Replies: 22
Views: 2,009
It was a nice review. But a little unsurprising given that he's a tokina ambassador :)
Forum: Mini-Challenges, Games, and Photo Stories 5 Days Ago  
Reflections, lets see them
Posted By aaacb
Replies: 2,827
Views: 211,161
Forum: Mini-Challenges, Games, and Photo Stories 6 Days Ago  
Thematic Post Your Portrait-Orientation Landscapes!
Posted By aaacb
Replies: 211
Views: 9,220
Forum: Weekly Photo Challenges 6 Days Ago  
Weekly Challenge Weekly Challenge #435 0 Eye spy ..something beginning with B
Posted By aaacb
Replies: 32
Views: 1,189
Boulders on the Beach



(the full title is "Black and White photo of Boulders with Barnacles on the Beach")
Forum: Mini-Challenges, Games, and Photo Stories 6 Days Ago  
Thematic Lighthouses
Posted By aaacb
Replies: 109
Views: 3,467
One of the lighthouses on Martha's Vineyard at sunrise.


Forum: Mini-Challenges, Games, and Photo Stories 6 Days Ago  
Thematic Post your Favourite Sunrises
Posted By aaacb
Replies: 373
Views: 31,481
Forum: Mini-Challenges, Games, and Photo Stories 10-08-2018, 07:14 PM  
"I Spy" Photo Challenge
Posted By aaacb
Replies: 28,822
Views: 1,281,437
I spy a dog (if people get in my shot and it's interesting, I'll take it... "street" photos without the street)

Forum: Mini-Challenges, Games, and Photo Stories 10-08-2018, 07:00 PM  
Thematic Post your Favourite Sunrises
Posted By aaacb
Replies: 373
Views: 31,481
This was a sunrise, or at least the time (about 6am) told me the sun was rising. Since there wasn't going to be any pretty warm light, I went in the fog looking for some subject and came back with this

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