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Forum: Pentax DSLR Discussion 1 Day Ago  
Pentax Battery Grip
Posted By Photobill
Replies: 21
Views: 679
Yes indeed!!!
Forum: Pentax SLR Lens Discussion 1 Day Ago  
lens light-gathering abilities
Posted By Photobill
Replies: 60
Views: 1,369
Great analogy!!!!



👍 thanks I have already collected the the cold drink from my buddy

This post has been very informative and a bit over my head at times😵. BUT GOOD READING 📷
Forum: Pentax SLR Lens Discussion 2 Days Ago  
lens light-gathering abilities
Posted By Photobill
Replies: 60
Views: 1,369
Thanks for you in depth post!!!
I was able to fallow the first part about the size of the sensors (FF would grab more paint than a aps-c would in a single exposure, based solely on the size of the sensor) wouldn't it be like a solar penal aimed at the sun the larger the panel the more rays it could absorb in total volume but a smaller one would absorb exactly the same volume based on per inch/cm

---------- Post added 08-16-19 at 11:50 PM ----------




👍 absolutely 👌 i feel you just need to work a little harder for it but its still😁
Forum: Pentax SLR Lens Discussion 2 Days Ago  
If you have the DA 21 and the DA 20-40 Limiteds . .
Posted By Photobill
Replies: 31
Views: 1,218
Yes it does. But if you think of it as a 21mm, 35mm or 40mm Prime that allows you a little bit of wiggle, it helps you get your head around it 👦f
Forum: Pentax SLR Lens Discussion 2 Days Ago  
lens light-gathering abilities
Posted By Photobill
Replies: 60
Views: 1,369
Awesome input from all you Pentaxians
YOU HAVE JUST WON ME A COLD DRINK OF MY CHOICE!!!!
I think I have a firm grasp in how the x1.5 magnification works on the affective focus range & how it affects the DOF.
My buddy has been debating me saying that his Canon 24-70 2.8L is just as fast on his FF camera as my Sigma 18-35mm F1.8 Art is on my K3II. I had thought not, but didn't have the information to back it up until now.
Nothing quit like a drink at your best friends (over 40 years) expense!!!
Forum: Pentax SLR Lens Discussion 2 Days Ago  
lens light-gathering abilities
Posted By Photobill
Replies: 60
Views: 1,369
Thanks for the info Ian!
Tell me if I'm wrong on my interpretation. If light was a liquid and you wanted to know how long it would take to fill a gallon jug you would need to apply this formula. But this does not apply when exposing an image?
Forum: Pentax SLR Lens Discussion 2 Days Ago  
lens light-gathering abilities
Posted By Photobill
Replies: 60
Views: 1,369
I should know, but I don't.
When people talk of the deference between FF & APS-C regarding the f-stop they mostly cover the bokeh.
My question is:
When using my SMC Pentax 55mm F1.8 @ 1.8 on a APS-C camera does that sensor get approximately the same amount of light as using it on a FF @ the same f:stop? There is a lot of talk about loosing almost a full f: when using lenses on crop body's but can you please clarify if this is mostly about the bokeh or does it also play a part in exposure?
Sample
I use a light meter and it says shoot the scene @ f2.4 Would I get approximately the same expo with a FF & APS-C body? Or would I need to open up to f:2 or f:1.8 on the APS-C to get the equivalent exposure as on a FF.

As I said I should know this, but I do not 😞

Thanks to anyone that can set me straight. 🙌
Forum: Post Your Photos! 3 Days Ago  
People Couple pics from vacation. Gulf Shores
Posted By Photobill
Replies: 4
Views: 256
Thanks for sharing I find the last two really stand out! Could you share what lens you used on these? As well as the f-stop?
Thank you
Forum: General Talk 3 Days Ago  
ebay "increase your offer" message
Posted By Photobill
Replies: 26
Views: 566
What sniping service do you use if you don't mind sharing.
Forum: Pentax DSLR Discussion 3 Days Ago  
Pentax Battery Grip
Posted By Photobill
Replies: 21
Views: 679
The buttons are frustrating. When using BBF and going from horizontal to vertical on the fly I have pressed the wrong button many times.

With the size of Pentax cameras I feel they match the LTD lens's perfectly (no grip) But when I go to a larger/faster lens I prefer to use a grip. I have not handled the K-1 yet.
Forum: Pentax DSLR Discussion 3 Days Ago  
Pentax Battery Grip
Posted By Photobill
Replies: 21
Views: 679
Yes I agree with you about Canons design, much more convenient. No it does not take a lot of time removing the grip but my experience when you take things off & on continually eventually you'll have things wear out.
I do not have the 1DX2 but I do have the much older 1DIII and love its battery life!!!

As an older man with my kids, grandkids, nephews & nieces very active in sports there are times I'll be @ 4/5 events in a single day (10-12 hours of shooting). I would say I put a larger demand on my batteries than most and that might be why I find it inconvenient removing the grip to put two fresh batteries in

Thanks everyone for your feedback!!!

---------- Post added 08-15-19 at 11:18 PM ----------



Thanks Adam
Yes I do have my camera set up this way

---------- Post added 08-15-19 at 11:19 PM ----------



😁 Yes I have done this many times.
Forum: Pentax DSLR Discussion 3 Days Ago  
Pentax Battery Grip
Posted By Photobill
Replies: 21
Views: 679
I Currently have a K3II with a battery grip. I am very disappointed that it only holds one OEM battery & the second OEM battery is in the body. Thus forcing you to remove grip from camera when charging is required. Is this a standard design for Pentax or do other Pentax body's allow you to keep grip on full time???

I'm not saying Canon is a better camera but in this situation I prefers the Canon Battery grips design, both battery's are in the grip making it posable to access them without removing the grip. When charging the OEM batteries I insert the 6 AA battery tray and off I go.

Is the design of the battery grip for the K-1 I & II the same as the K3II?

Is it just me or do others find this a little annoying?
Forum: Pentax SLR Lens Discussion 4 Days Ago  
One K-Mount PRIME to rule them all 2019
Posted By Photobill
Replies: 71
Views: 3,289
OK Devils Advocate: 😈 If you had to sell all your lenses except for ONE (to take the cash back in time and invest in microsoft) what "ONE" would you keep 😈 😀
Forum: Site Suggestions and Help 4 Days Ago  
Question Earning Pentaxian status
Posted By Photobill
Replies: 10
Views: 330
Well shoot I didn't know anything about the "Pentaxians" status can you please tell me more???
Forum: Pentax Full Frame 4 Days Ago  
Question on D-Li90 Battery
Posted By Photobill
Replies: 12
Views: 519
My experience is "ALWAYS, ALWAYS" buy OEM batteries & battery grips. I have found "NO" comparison between OEM & third party parts when it comes to powering your camera. (AC adapters excluded)
Forum: Pentax SLR Lens Discussion 4 Days Ago  
Best LTD Prime Lens To Stitch
Posted By Photobill
Replies: 26
Views: 997
Thanks for your insight!!
The resolution would be out of this world with a 20 image piano!! I would be worried about the inherent file size problem. I am a little from the old school and spend my photography money on glass and updating my camera every few years. I do not have the newest & fastest computer on the market. I would be afraid of the processing time. Not that I would do them all the time but it would be a concern. I would also be worried of the time it takes to capture 20 photos over 6/7 photos. As I'm sure everyone that shoots pano's and includes the sky knows, things happen fast with clouds & colors. How many times have you shot a sunset (with no intention of stitching) and had one photo that was night and day above all others even though they were all shot moments apart.
Not that these two concerns would be a deal breaker but things that I would think about.

---------- Post added 08-14-19 at 09:14 PM ----------


I COULD NOT AGREE MORE!!!! This would be my #1or 2 concerns. (IQ would be the other) Yes software can do some correction but I think you should not always count on it!!

---------- Post added 08-14-19 at 09:21 PM ----------


👍👌
I'm going to go out with my 70/2.4 ltd this weekend and do some testing. (IQ and file size for landscape pano's)
I will also be taking a SMC Pentax 55mm F1.8 for comparison.
Forum: Sold Items 5 Days Ago  
For Sale - Sold: 77mm Limited (black) $450 15mm f/4 HD Limited ($185)
Posted By Photobill
Replies: 2
Views: 604
I'm interested in the 15ltd I sent a PM
Forum: Pentax SLR Lens Discussion 5 Days Ago  
Best LTD Prime Lens To Stitch
Posted By Photobill
Replies: 26
Views: 997
WOW thanks Des!!
Absolutely love your pan with the FA 77ltd would be nice to compare it with the 70ltd side by side

---------- Post added 08-13-19 at 11:46 PM ----------


The DA* 55 does check a lot of boxes Distortion, IQ, WS and throw in f:1.4
I would think it makes a great portrait lens as well.

---------- Post added 08-14-19 at 12:09 AM ----------



I am also concerned with the larger volume of photos that would need to be stitched with use of a 55mm lens


AWESOME was this shot with an aps-c body. By using the FA43 and using more frames the resolution is outstanding. This technique would result in an image approaching a medium format photo👌
Forum: Pentax SLR Lens Discussion 6 Days Ago  
Best LTD Prime Lens To Stitch
Posted By Photobill
Replies: 26
Views: 997
How's the distortion with the FA31?

---------- Post added 08-13-19 at 10:10 AM ----------



Yes when shooting on a tripod I'm always FULL manual!!! (No AWB as well) I have found it keeps frame to frame consistent. I have not done any focus stacking but plan on working on that very soon. If the sky is included I NEVER use a CP. (I learned that years ago) but I have had great results with it when there is water involved reflection/glare off of lakes, puddles wet trees etc.

---------- Post added 08-13-19 at 10:20 AM ----------


Thanks great to know about WR on the 20-40 might need rent that one to test. I love my Sigma 18-35 Art but hate using it when there is moisture in the air (rain/mist) and it doesn't fit the bill for a light weight camera bag. How is the DA 20-40ltd for up close macro shooting?
Thanks for your input!!!
Forum: Pentax SLR Lens Discussion 6 Days Ago  
Best LTD Prime Lens To Stitch
Posted By Photobill
Replies: 26
Views: 997
Thanks Tas
I had thought of going out with the 70ltd this weekend and playing around with it. Not shooting anything life shattering but a basic landscape and do a stitch, have it blown up to 20x30 & take a look. What software do you like for stitching?

---------- Post added 08-13-19 at 12:45 AM ----------


I would say after spending today researching the DA 35 Macro ltd has moved to the front of my list. I just love the size & feel of the ltd's (the 35 ltd is a little larger but I'm thinking it is because of being a macro)
Am I correct in my thinking the NON HD version has square blades (this is what I desire as I like star burst)
And no ltd is WR? If the latter is true COMMON PENTAX GIVE US ONE LTD TO SHOOT IN BAD WEATHER!!!!
Thanks everyone!!! And I'd still like to hear your thoughts on the subject.
Forum: Pentax SLR Lens Discussion 6 Days Ago  
Best LTD Prime Lens To Stitch
Posted By Photobill
Replies: 26
Views: 997
I think your dead on about the IQ with the Voigtlander I took a look at photos on flickr and at f4 & up WOW!!
Thanks for the advice.
Forum: Pentax SLR Lens Discussion 6 Days Ago  
Best LTD Prime Lens To Stitch
Posted By Photobill
Replies: 26
Views: 997
I was out shooting landscapes yesterday with an off brand camera (Canon 6D) and was thinking the the size of the Pentax cameras are awesome to carry around. So today I started looking at "PRIME" lens's to make a nice light travel/hiking bag. I have the *ist D, K20D & the K3II and a 70ltd (as well as many other lenses) I love the size & image quality of the 70ltd and that got me thinking "wouldn't it be nice to pick up a couple more ltd's for this bag. Boy it would be light!!!" After reviewing the 15ltd & 21ltd I'm very concerned with image quality primarily on the edges. The 35ltd has much better reviews on overall sharpness. My question to you is......If you had to pick a "PRIME" ltd lens to be used on a aps-c camera to be stitched, what would you pick????
PS: I regularly print 20x30. I do pixel peek so sharpness is very important to me
Lens speed is not an issue as I will be using a tripod and shooting at the lenses best f: for optical performance.
Looking toward to your thoughts
Photobill
Forum: Contest Voting 08-04-2019, 02:42 PM  
Before the frosts
Posted By Photobill
Replies: 19
Views: 233
Great photo!! Question when was it shot? I live on the west coast US and its still a 1 1/2 months till we get to all the fall colors.
Forum: Troubleshooting and Beginner Help 07-15-2019, 11:38 AM  
Tamron 70-200 f2.8 missing focus.
Posted By Photobill
Replies: 11
Views: 464
I have an older Sigma 70-200 2.8 the exhibits the same issue. Shooting my grandsons baseball games it likes to catch focus on the fencing behind him when he's playing 1st (shot from the third base line w/no obstruction.) when I have front lighting. It is as though its focusing around my subject (K3 II, Single point)
Forum: Post Your Photos! 07-14-2019, 12:14 AM  
Landscape Holywell Bay, Cornwall, at sunset
Posted By Photobill
Replies: 4
Views: 226
Great capture!! The direction of movement of the clouds is really what makes this photo terrific!!
Is this a composite? At 32sec it would seem the details on the foreground would be smoothed out more
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