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Forum: Pentax SLR Lens Discussion 03-19-2016, 09:08 PM  
Why not fill as many slots as possible in one's kit with macros?
Posted By jkomp316
Replies: 25
Views: 2,398
the pentax 50 and 100 macros are very sharp at f8 and infinity.
Forum: Pentax SLR Lens Discussion 02-05-2016, 10:20 AM  
How to handle USPS insurance claim?
Posted By jkomp316
Replies: 21
Views: 1,817
an item over $250 usually requires a signature. this is when you would have the deliverer sign possible damage.
Forum: Pentax DSLR Discussion 01-27-2016, 10:28 AM  
ist DS Rendition
Posted By jkomp316
Replies: 6
Views: 1,078
the sensor in question 6.1mp was the culmination of a sony science experiment. i believe it was thier first sensor that awnsered to 35mm digital.
Forum: Pentax DSLR Discussion 01-18-2016, 04:18 PM  
Why Pentax makes you tick ..
Posted By jkomp316
Replies: 57
Views: 4,457
hivemind
Forum: Pentax DSLR Discussion 01-18-2016, 04:14 PM  
Why Pentax makes you tick ..
Posted By jkomp316
Replies: 57
Views: 4,457
I bought a Pentax for the same reason I bought a Hyundai 8yrs ago.
Forum: Pentax SLR Lens Discussion 01-02-2016, 07:59 AM  
Rokinon (Bower/Samyang) 8mm Fisheye, DA 10-17 Fisheye, and Sigma 10-20 comparison
Posted By jkomp316
Replies: 22
Views: 4,774
i find the rokinon gives best iq at 5.6 and changes very little beyond that.
Forum: Pentax SLR Lens Discussion 12-30-2015, 08:02 PM  
pentax 16-85 vs samyang 16 at 16mm?
Posted By jkomp316
Replies: 11
Views: 2,006
the 16-85 looks like a nice zoom for outside shots. i tend to favor primes for faster (indoor) aperatures.
Forum: Pentax SLR Lens Discussion 12-30-2015, 07:57 PM  
DA 50/1.8 or DA35/2.4 or ?
Posted By jkomp316
Replies: 87
Views: 4,867
im a 28, 50 shooter. usually skip right over the 35.
Forum: Pentax SLR Lens Discussion 12-29-2015, 12:05 PM  
M42-K mount adapter attachment thought.
Posted By jkomp316
Replies: 18
Views: 1,469
i removed the locking tabs on all 3 of my m42 adapters and threw the tabs in the trash. never had a problem with lenses coming loose. sometimes i need to swap lenses from m42 to PK in a hurry and have no time to fiddle with getting that ring off the body.
Forum: Pentax SLR Lens Discussion 12-29-2015, 05:37 AM  
Bang for Buck (under $100) Wide Angle Zooms
Posted By jkomp316
Replies: 17
Views: 1,725
im saving all my pennys for a samyang 14mm f2.8, on sale you can get them in the low $200. they really take some stellar milky way shots.
Forum: Pentax SLR Lens Discussion 12-28-2015, 07:11 PM  
When did your LBA abate ?
Posted By jkomp316
Replies: 148
Views: 8,070
last lens i bought was an old zeiss folder camera with a novar 100mm f3.5 triplet. i converted it to m42 mount and took some interesting shots. i stopped there knowing that pandora's box was wide open.
Forum: Troubleshooting and Beginner Help 12-27-2015, 07:17 PM  
Nightmare M42 adapter
Posted By jkomp316
Replies: 19
Views: 1,822
i have a couple of these cheap adapters and one genuine pentax one. both work the same aside from the aperature ring is not centered on the cheap ones. i removed the locking clips on all of them.
Forum: Pentax DSLR Discussion 12-26-2015, 06:42 PM  
What's the big deal about "Weather Resistance"?
Posted By jkomp316
Replies: 46
Views: 4,507
Ive also used non resistant gear in damp conditions. I think it would be handy for sports shooters where the game isnt cancelled by rain. If its raining out i go inside.
Forum: Troubleshooting and Beginner Help 12-12-2015, 09:27 PM  
Question on M-Trick
Posted By jkomp316
Replies: 37
Views: 2,732
I can give you an entire story. My first dSLR was the ist DS and 50mm M series f1.4 my first decent lens. My best shots with it came in Av mode with one hand on the focus ring and the other on the shutter. This offered the least distractions for me to immerse myself in the shot. I really liked the depth of field work but had a hard time with how shallow f1.4 is wide open.

Frustrated by the manual mode requiring the green button I wanted a way to shoot Av around f2.8. I tried the hole method but ended up filling it back in with JB weld:D because I didn't like the less confident snap onto the body. I really thought hard about modifying the body to not engage the stop down lever... I settled on modifying the lens instead as it only cost $50 on eBay.

I tried the Takumar 50 but disliked the yellowing and couldn't find a reasonably priced 8 element version that wasn't worn out. My viewpoint was further reinforced by the fact that every Takumar lens is missing this stop down lever anyway. I don't shoot film and I know people who have/do will disagree with my approach, but is has helped me capture better shots and it works well for me in practice.

Majority of my work beyond f4 I am shooting at infinity anyway. This opened up an entire new realm of disassembling lenses and adjusting the infinity stop as most are off as well. The avatar pic is from a cheapo zoom that had cemented separation. I have since learned and fixed a prime with this issue using mineral oil instead of cement. :lol: Anyway, this forum is great for information and I have learned quite a bit in the past years. Cheers!
Forum: Troubleshooting and Beginner Help 12-11-2015, 09:05 PM  
Question on M-Trick
Posted By jkomp316
Replies: 37
Views: 2,732
the lens is already crippled by todays standards. why live with crippled metering as well?
Forum: Troubleshooting and Beginner Help 12-10-2015, 04:22 AM  
Question on M-Trick
Posted By jkomp316
Replies: 37
Views: 2,732
filling the viewfinder with light isnt a problem until after f5.6. this is the kit lens fastest speed at 55mm... 90% of my shots with any fast 50mm are at f5.6 or below. i see no need for a stop down lever here and having to spam the green button before each exposure is disruptive to workflow.
Forum: Pentax SLR Lens Discussion 12-09-2015, 03:30 PM  
Anyone use 1930s folder camera lenses?
Posted By jkomp316
Replies: 9
Views: 1,535
Had some decent weather and took an outside shot with the Novar/Zeiss at f/11. It's uncoated 3 element design.

Attachment 290796
Forum: Troubleshooting and Beginner Help 12-08-2015, 07:37 PM  
Question on M-Trick
Posted By jkomp316
Replies: 37
Views: 2,732
its interesting; many people prefer A series for aperture control or m42 for lack of lever. yet i always get pushback when i suggest modifying an M series to operate in the same manner as an m42. the new china 85mm K lenses don't even have levers.
Forum: Pentax SLR Lens Discussion 12-08-2015, 07:13 PM  
Very good article on sample variation between lenses
Posted By jkomp316
Replies: 18
Views: 2,062
common misconception about "making it through QC" with volumes as they are, QC is about tools to make good parts vs. checking parts after they're made. everyone got this misconception from the shiny gold inspector stickers manufactures used as a "feel good" measure.
Forum: Troubleshooting and Beginner Help 12-08-2015, 06:20 PM  
Question on M-Trick
Posted By jkomp316
Replies: 37
Views: 2,732
just cut the lever on the lens off. were not talking rare or expensive lenses here.
Forum: Pentax K-01 12-08-2015, 06:16 PM  
New 2 lens K-01 Kit
Posted By jkomp316
Replies: 17
Views: 2,948
i only wish it worked with the gps unit
Forum: Pentax SLR Lens Discussion 12-06-2015, 05:58 PM  
Coatings on the earlier FA50/1.4
Posted By jkomp316
Replies: 7
Views: 993
CFL bulbs in every home are cool though.
Forum: Welcomes and Introductions 12-02-2015, 06:36 PM  
Hello from Italy!
Posted By jkomp316
Replies: 11
Views: 455
i would suggest a used k30/k50 and an m42 50mm lense to get started on little money. sometimes i think that is all one truley needs.
Forum: Pentax SLR Lens Discussion 11-28-2015, 10:38 PM  
Anyone use 1930s folder camera lenses?
Posted By jkomp316
Replies: 9
Views: 1,535
Here's phone shot of setup and a quick f3.5 shot. The metering is a bit inaccurate. Would like to find some vintage film post presets.

Attachment 289717
Attachment 289718
Forum: Pentax SLR Lens Discussion 11-28-2015, 09:09 AM  
Anyone use 1930s folder camera lenses?
Posted By jkomp316
Replies: 9
Views: 1,535
I used an old m42 extension tube for the mount and some pvc for extension. I managed trim to get infinity but its a mm or two before stop. Still on mobile i'll upload some pics soon. Yes its uncoated and flares easy, I am surprised by the center sharpness wide open. I cant imagine what focusing at f3.5 wouldve been like without a range finder.
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