Forgot Password
Pentax Camera Forums Home

Showing results 1 to 25 of 183 Search:
Forum: General Photography 09-17-2020, 08:48 PM  
Munising MI
Posted By One3rdEV
Replies: 3
Views: 618
Popular spots that come quickly to mind (all require hiking):
- Closer to its parking = Mosquito Beach area (sandy to west, rocky to east, summertime popular for wading on rock shelf up to chest deep), not certain of anything particularly special photographically, but generally scenic.
- Further from its parking = Chapel Rock (tree on rocky out-crop) + River just westward along rim trail slides down rocky slope into the lake water and can produce nice photographs from the lake edge at end of the beach just west of the river (shooting toward east).
Forum: Welcomes and Introductions 06-27-2020, 09:03 PM  
Hi - I'm new ! and WOW ... ;
Posted By One3rdEV
Replies: 13
Views: 629
To the OP: Guess I'm a bit too curious and feel compelled to ask... Larry E30... is it that there are 29 Larry E's that came before you? ...or is it by any chance E30 as in that of the four wheeled variant?
Forum: Pentax News and Rumors 06-27-2020, 09:24 AM  
D FA 21 Limited is one of the three.
Posted By One3rdEV
Replies: 636
Views: 39,871
I totally agree with Kunzite's perspective... heavy knurling under black lens sample is the lens cap. Light knurling toward sides of cylindrical surface visible on silver sample and labelled with the focal length and green button is the fixed non-rotating accommodation for finger grip when mounting / removing the lens from camera body and also quite likely aesthetic (having chosen not to place it further away from the mount).

This is where the fixed grip knurling is on my copies of the FA 43mm / 77mm and DA 18-135mm lenses. In the case of these FA Ltds the knurling is on the aperture ring which is fixed when locked on 'A'. In the case of the 18-135mm the fixed grip knurling lies to both sides of the label and green dot, but does not extend fully across the bottom which is where the serial number is placed. However on all three of these lenses there is little real-estate options to have chosen a different location for fixed grip due to the lens body being very short or consumed by focus / zoom rings. My copy of the DA* 50-135mm has not space near the lens mount for a fixed grip because the zoom ring runs nearly right up to it and it definitely makes mounting and removal of the lens more clumsy.
Forum: Pentax KP 06-26-2020, 05:07 PM  
Post Your Best KP Shots
Posted By One3rdEV
Replies: 2,584
Views: 251,672
Absolutely concur... will miss your presence and inspiring images very much Eddy!... BruceBanner
Forum: Pentax SLR Lens Discussion 06-22-2020, 06:13 PM  
Can anyone recommend a decent 300mm manual lens?
Posted By One3rdEV
Replies: 21
Views: 1,194
Similar to previous comments I would venture the best choices begin with DA 55-300mm, other older Pentax variants, other K-mount variants such as Sigma.

A little known / not very popular film era lens that used to offer decent performance given its very low resale value was the 'Olympus-OM Zuiko Auto-T 300mm F4.5':

Prior to the MILC popularity excellent copies used to sell for USD $60. However it appears that the going rate is now about $130. This also requires a 'Leitax' (USD $70) or similar adapter. Consequently running the total cost up to about $200. Likely not so great against other prospects. The lens can be subject to very strong CA / color fringing in some conditions. However it is also capable of delivering some very good results in less contrasty lighting. Ironically I didn't care much for the results of the lens on my Olympus film cameras, but I have experienced some very good results with the Pentax digital aps-c sensor in my K-5. Examples follow- including a very bad CA / purple fringing case:

IMPG6838 1600 ooc defringe_9 by Kevin, on Flickr

IMGP6960 exp-p0_25 by Kevin, on Flickr

IMGP6896 auto exp-p0_75 by Kevin, on Flickr

IMGP6888 Zuiko 300mm F4_5 Purple Fringe example by Kevin, on Flickr

Zuiko 300mm F4_5 trial 01 by Kevin, on Flickr
Forum: General Photography 06-22-2020, 02:15 PM  
What is your other camera ?
Posted By One3rdEV
Replies: 49
Views: 2,075
Latest acquisition = Olympus Tough TG-6 action camera: Because it is capable to Capture in RAW format. Use for occasional snorkeling and more frequently kayaking in surf conditions that I otherwise must put my K-5 and 18-135mm away into its dry bag. Additionally handy for those family activity times I wish to have a pocketable only camera capable for post processing favorite images. It was difficult to spend that much without putting it towards expanding my preferred Pentax DSLR performance.
Forum: Pentax DSLR Discussion 06-14-2020, 09:39 PM  
Weather Resistant
Posted By One3rdEV
Replies: 23
Views: 1,225
One of those topics that tempts me to comment with my personal perspective and experience... but then I realize there are so many directions in which to go that it might be appropriate to just let it ride. But I'll give it an attempt anyways:

Overall I think taking a conservative approach regarding environmental specifications is always a wise way to help protect one's investment. But of course there are situations that may warrant other approaches. I am also of the opinion that the camera industry does not certify to any standardized environmental specifications such as IPxx otherwise they would call attention to it in their marketing.

In my film photography days I was very meticulous about caring for and maintaining my photography gear:
- During my early 35mm hobbyist period I strongly adhered to the philosophy of protective filters for the front of my lenses and purchased expensive multi-coated filters to minimize image degradation as much as possible. Incidentally, cleaning of the multi-coated filters was extremely difficult.
- During my later much lengthier medium format hobbyist / paid work period, I very intentionally chose not to use front element protective filters over the Zeiss T* coated lenses to avoid any image degradation. In my experience maintaining pristine front lens elements was never problematic and lens shades remained most effective. The less likely risk of gross physical damage (e.g. fracture for dropping) was something I was willing to accept. As an interesting side note, I recall rumors or reports that Zeiss contracted with Pentax to develop and possibly manufacture process the T* lens coating.
- In my DSLR days I continue my philosophy and favorable experience of deliberately choosing not to use lens front element protection filters. Instead relying directly on the superior developed Pentax OEM front element coatings (not limited to Pentax- I'd do the same if I were using other makes).

My K5 + DA 18-135mm WR are my primary kayaking outfit:
- I do choose to secure it in an 'Overboard' brand dry bag for ingress and egress of the kayak and times when facing a predictable high risk threat of submersion (e.g. breaking surf or other high instability threats).
- I have no issues with letting the camera sit ready on my lap as I paddle in spite of dripping from the paddles in an open cockpit. With a spray skirt in the ocean I used a combination of the camera / dry bag around my neck or tethered to the boat.
- After use I degrease my unfortunate dependency on sunscreen by immersing the camera with WR / AW lens attached under a small gentle running stream of room temperature water at the kitchen sink and a finger rub down of Dawn dish soap on the rear screen. When doing so I typically hold the camera at a 45 degree angle with the lens facing downward and concentrate the majority flow onto the rear screen and try to limit any extent of water volume, pressure or time on the lens. On rarer occasions when I have rinsed the lens I attempt to do so with the water falling at a 90 degrees onto the blunt surfaces and not an angle that might encourage more direct volume, pressure or time toward the rotating interfaces of the lens. On a few rare occasions circumstance to led to feeling need to perform such a rinsing in a shower while desalination of the kayaking gear.
- Naturally these comments / personal experience represent a Notable Risk regarding the environmental protection of the gear.

As others have already noted, there is also no way to know when age or other factors might also compromise the performance of the as-manufactured protection. It might also be appropriate to note that our recently purchased Olympus TG-6 camera (shoots RAW) rated for submersion depth down to 50 feet states that the camera seals must be serviced by an authorized service center each year in order to meet its environmental performance warranty.
Forum: Welcomes and Introductions 06-14-2020, 07:33 PM  
Digital noob, old school film shooter re-enters the camera world
Posted By One3rdEV
Replies: 4
Views: 307
Welcome to the forum! I think you'll be pleasantly happy with your entry into to the present state of digital with Pentax.

It isn't perfect, but digital has progressed far enough to be capable of appreciating it. Near perfection would most likely be the Pentax sensor performance packaged into the basic operation of the Mamiya 645 body. At least that is my personal perspective having come from a similar situation- moving from the Hasselblad 645 film era... to a decade of little to almost no photography... followed by entry into digital via the Pentax K5. For subjects where I really want fine control... I find the electronic camera aspects (would apply to virtually any DSLR / SLR / modern camera) quite often requires more time in total getting the image I expect, relative to the decisive in-full-control from the get-go manual 645 experience- but overall I find the results are quite good to excellent when factoring in dynamic range capability, color etc. As a bonus- I've found that my two left over film era SLR lenses (in my case Zuiko) give excellent results on the Pentax sensor, in fact one of them easily surpassing what I was getting with film.
Forum: Pentax K-1 02-09-2020, 01:34 PM  
Pentax k1 dont work correctly with DFA lenses
Posted By One3rdEV
Replies: 13
Views: 1,161
If unable to focus to infinity / Or inability to obtain accurate focus within the fine focus adjust range of the camera body:

I had an experience with my new K5 back in 2012 which applied to both my new DA and new Sigma lens that were purchased at the same time. Neither of them were capable of focusing sharply at infinity within the camera fine focus adjust settings between +/-10. After consulting directly with Pentax Service I sent the camera body and Pentax lens to Pentax service for recalibration. This solved the issue.

As a further benefit which may or may not apply in the case of the K1: Ever since then my K5 autofocusing performance has typically been very accurate in regards to focus lock and not hunting (something which was a known challenge for the K5). So whenever this inability to focus sharply to infinity situation arises- in spite of the significant inconvenience of shipping the equipment and not having access to it for a lengthy time... in the end the result can be well worth the frustration of the inconvenience.
Forum: Pentax DSLR Discussion 09-13-2018, 09:40 AM  
AF Spot mode: hidden fact revealed - AF point is 30% smaller than in "select"
Posted By One3rdEV
Replies: 17
Views: 2,003
Hmm, I interpret the original posted statement very literal... that the single middle sensor is used in Spot setting and this equates to a measurement area approximately 30% of that resulting from a set (plural) of sensors about the middle used in Select setting. Unspecified in this particular paragraph is which set of sensors are involved in the Select setting. The OE information being stated for the sake of relative comparison in the areas being measured.
Forum: Pentax DSLR Discussion 11-11-2017, 12:04 PM  
DA 18-135 mm lens
Posted By One3rdEV
Replies: 70
Views: 6,548
I find some of the prior comments from Norm and Matt to be excellent feedback regarding my own personal experience with the 18-135mm. Due to its convenience (focal range, size, weight, weather sealing) it is the lens that gets the majority of use on my DSLR. That being said the majority of my DSLR use is for general purpose photography such as vacations and other activities with family and friends. Surprisingly for some, I purchased it after I already had a more perfect combination consisting of the Sigma 17-50 f2.8 and DA* 50-135 mm f2.8. For carrying the camera and grabbing some photos in a setting involving others who do not share much appreciation for a hobbyist enjoyment of photography (time spent composing, changing lenses, exploring various other perspectives) the 18-135mm works very well and delivers very pleasing images. I only recall one image where it truly frustrated me due to very poor corner sharpness near full focal length. Occasionally on pixel peeping I wish the long end or corner sharpness was better, but for a lot of general purpose, vacation or physical activity use it really does not take away from the image impact. Pixie dust? I didn't buy the lens until I was convinced that others have taken phenomenal images with the lens- like previously mentioned, just check out the thread dedicated to images from the lens, there is a consistent trend of a lot of excellent images found through out that thread. At a time when people are infatuated with f1.x depth of field for subject isolation with the outer (and center) 98% of the image being out of focus- I just don't understand all of the vendettas aimed at the 18-135mm for poor corner sharpness when the lens delivers very good to excellent images in actual use.

ps: I think it only fair to also mention that when I did a one-to-one comparison shoot between my DA 18-135mm and the Sigma 17-50 f2.8 I was quite surprised to find that in pixel peeping the Sigma continuously outperformed the 18-135mm in regards to color accuracy, resolution, micro-contrast and 3D effect. I honestly expected the DA to perform better with a couple of those attributes. Nevertheless it is the DA that finds itself continuously in use (again the convenience factor, and continuously pleasing image results). The net result for the Sigma is- that I can't bring myself to sell it ;)
Forum: Pentax SLR Lens Discussion 05-16-2016, 08:28 PM  
switching primes to zoom
Posted By One3rdEV
Replies: 22
Views: 1,749
I really, really, like the contributions (with specific clarification details) that those who responded before me gave regarding the prime vs zoom debate. This helps to reaffirm my appreciation for many of the great people who can be found among this forum.

It is quite common on the web to encounter endless echoes from the past that in modern times are often equivalent to myths. But based on my experience the above statements are quite sound.
Forum: Pentax K-1 05-08-2016, 09:28 AM  
K-1 vs K3, which is which
Posted By One3rdEV
Replies: 50
Views: 8,546
As an additional side note of interest for Kerrowdown: In a related but slightly altered use by VoiceOfReason… I also do concurrent in-camera RAW + JPEG (downsized) processing for vacations. This is because my wife appreciates the instant JPEGs. She likes to throw them into an MS Powerpoint presentation with text comments as a summary of our trip to share during our next visit with family or best friend. Not being a photography enthusiast, with the instant JPEGs she doesn't have to take time or effort for post-processing. Me of course, I'm after the RAW images.
Forum: Pentax K-1 05-07-2016, 08:10 AM  
Is k1 pics are softer than usual?
Posted By One3rdEV
Replies: 14
Views: 1,498
As my initial personal opinion- I also found the D810 images using the 'comparometer' at Imaging Resource to be notably sharper than the K-5. However, as I understand this tool uses the JPEG image and is therefore influenced by in-camera processing. I also believe that JPEG in-camera processing can potentially be updated sometime in the future by release of firmware if Pentax should choose to do so. And in this case I hope that Pentax may choose to do so.

Since I shoot RAW and process any JPEGs out-of-camera the only fair way for me to compare will be with RAW files. Unfortunately, the Nikon files are not available in a convenient open DNG format :(

PS- but thank you once again Pentax :)
Forum: Pentax K-5 05-07-2016, 07:43 AM  
New K5 Owner
Posted By One3rdEV
Replies: 35
Views: 4,552
Out of curiosity: What type of subject matter do you like to photograph? What lenses to you have?

Overall the K-5 is a great camera. Some people found theirs to be finicky with erratic front or back focusing, extra prone to front or back focusing under incandescent lighting, and subject to AF hunting resulting in a slow lock onto focus. Others reported not having many issues with those characteristics. I think some of it depends on operator expectations, style of use and adaptation. As with all photographic gear since the AF era, I believe that some of the issues lie with the individual products as well. Negative comments, opinions and feedback get broadcasted much more frequent and widespread than positive ones. Back in its introduction days there was more than one review article that reported experiencing the K-5 AF as hunting more, but achieving a higher accuracy than the Nikon D7000. Of course these comments were subtle and never got much attention.

Based on my own personal experience, I'm convinced that getting the AF fine adjustment right on a per-lens basis can help resolve much of the previously mentioned challenges. I believe that the electronic system needs a certain fine level of acuity in order for it be confident it has arrived at focus. This seems to help reduce hunting. It is equally important that the operator recognize the overall size of sensor (e.g. center sensor) and understand how the make-up of contrast within that target is going to influence the AF decision. For example; insufficient contrast (e.g. a person's cheek only) is going to lead to hunting, while contrast resulting from a busy background or foreground (e.g. contrasty subject matter behind the bridge of the nose) is going to distract the sensor. That being said and in comparison to the newer products, the K-5 level AF will struggle with very low light situations.

PS- the center sensor is a cross that practically fills the entire center bracket (+). The specific AF sensor size relative to the view finder markings (and it response) can be explored as the sensor approaches a target from the side using a coin or other small object taped to a contrasting monotone wall.

PS, PS- be careful visiting the K-5 'show us your pictures' thread as it is loaded with excellent examples from many great forum members and can be quite addicting.
Forum: Pentax SLR Lens Discussion 05-04-2016, 09:51 AM  
Focusing issue (weird)
Posted By One3rdEV
Replies: 6
Views: 1,060
Please give some further description regarding the lighting / environmental conditions. Also try to replicate the problem in bright sunny daylight and if you are indoors with dim incandescent lighting, perhaps try to replicate with using flash.

Is this happening with the camera set to a single point AF sensor (e.g. center), or do you have it on matrix? Also what were you using as a subject, and what was the subject to camera distance?
Forum: Pentax K-1 05-03-2016, 08:11 PM  
How to do a better manual focus in K1
Posted By One3rdEV
Replies: 16
Views: 11,768
With the OVF, using the 'Catch in focus' mode is another option. For example; when this mode is set the shutter release button is pressed and held, while the focus to the lens is rotated, then when the subject comes into focus at the user specified AF sensor (e.g. center sensor) the camera will automatically actuate the shutter.
Forum: Pentax Full Frame 05-01-2016, 07:12 PM  
Which Prime lenses will balance off K1 weight
Posted By One3rdEV
Replies: 34
Views: 4,675
For hiking and trekking- if a near-normal prime is of interest: I'd like to emphasize taking a closer look at the DA* 55mm. It is weather protected, and if you take a closer look at image samples within the PentaxForums or across the web it is a consistent performer producing images with something a little extra-special in rendering. Just my personal opinion as an observer and non-owner.
Forum: Pentax SLR Lens Discussion 04-30-2016, 05:51 PM  
Protecting 15-30 front element
Posted By One3rdEV
Replies: 7
Views: 1,082
Once I left hobby mode and moved into much more expensive medium & large format gear with the goal of optimum performance and shooting for commercial use- I completely abandoned using lens filters for protection purposes and never went back. Just one opinion in a sea of thousands who practice the contrary.

The point is don't panic- especially if the lens design doesn't let you do anything differently anyways. You'll get used to it, and eventually you may even learn to appreciate it (less ghosting, less loss of color due to flare, greater contrast and resolution).
Forum: Pentax SLR Lens Discussion 04-28-2016, 09:34 PM  
Lens focus calibration guidelines
Posted By One3rdEV
Replies: 22
Views: 5,020
I'll concur with others here, that after experimenting over a period of time with my K-5, I found the following to be crucial:

- Camera locked on center point focusing.
- Tripod mounted.
- Daylight color temperature (seemed to be crucial back in the K-5 days, unless my most crucial shooting was to be in other lighting, e.g. incandescent).
- Lens to target distance approaching 20 to 50x focal length (or alternately most important subject distance, e.g. if a portrait lens).
- An AF target that provides only a single plane perpendicular to the camera axis and a single central flat target design (e.g. thick horizontal bar) of high contrast on which to lock focus (having a zone of no-contrast surrounding the AF center target).
- Ideally a symmetrical high contrast pattern nearer the perimeters or four corners of the target image frame that can help account for errors in alignment and provide a pattern (e.g. test images or text fonts) that facilitate the ability to distinguish focus resolution.
- Defocusing between images.
- Refocusing accomplished with a single lock on target (without hunting or step-wise adjustment).
- Image comparisons (e.g. pixel peeping) should be made considering errors in alignment (e.g. comparing all four corners of target).
- Zoom lens tested at minium, median, and maximum focal length (then judging which to give priority to based on best compromise or most important use of the lens).

For defocusing, a couple of options:
- Pan to the side then auto focus on a consistent spot either closer or farther distance than the AF target, then pan to recenter with the AF target and auto focus for the test image.
- Without panning by switching to manual focus and adjust the lens focus point by hand to something consistently closer or farther than the AF target, then switch back to auto focus for the test image.

Things that didn't work well:
- Mixed lighting (for a camera such as the K-5 that was AF sensitive to lighting temperature).
- A very close focus scale (e.g. 45 degree camera on tripod to floor).
- Attempts to use a sophisticated 45 degree target at longer distances (approaching 20x).
Forum: Pentax K-1 04-28-2016, 08:02 PM  
UK - SRSMicrosysrems delivery
Posted By One3rdEV
Replies: 92
Views: 11,488
Jon & Rob, thanks for taking the time & effort to write up your initial thoughts :) I much enjoyed getting a quick synopsis.
Forum: Pentax News and Rumors 04-27-2016, 06:50 AM  
Pentax K-1 Officially Announced
Posted By One3rdEV
Replies: 1,581
Views: 198,250
OoKU if that is your personal copy… then now is your chance to seize a little fame ;)… either go shoot some 1st images from the production model, or start investigating the status for some of the uncertain features (e.g. 1:1 crop, fixed focusing screen) :D
Forum: Pentax SLR Lens Discussion 04-25-2016, 06:46 PM  
Is the Sigma 17-50 2.8 a better lens than the 20-40 Limited?
Posted By One3rdEV
Replies: 24
Views: 3,488
Back in 2012 when the Sigma 17-50 f2.8 was new.. according to DXO it delivered the highest peak resolution rating of any lens which they had data available for using the Nikon D7000 (this included fixed focal length lenses). At that time there were very few image samples from it available on the web, so I bought it based on specs alone. This was not a bad move at all since it delivers very good to excellent images.

However, within a couple of years later I decided to buy the DA 18-135 mm lens for the purpose of family vacations and activities. This was primarily because I wanted a single lens solution with longer reach and WR. The slightly smaller size and weight of the 18-135 mm has been a little beneficial also. The WR has proven to be very important for me as I've expanded to using the lens with my outdoor water based activities.

I figured that since the DA 18-135 mm lens had such good center resolution, I could sell the Sigma. However, as much as I enjoy the many outstanding images I get from the DA 18-135 mm- if I shoot identical images, the Sigma demonstrates visibly greater micro-contrast and 3-dimensional rendering. To be honest, this really surprised me because I expected the Pentax glass to excel in these two areas. If I compare to my Zeiss Hasselblad medium format lenses (which I consider to create very real-life rendering), the Sigma renders quite similarly. Mind you I love my Pentax glass, and I also love the continuous flow of images taken by others using Pentax lenses. So I just don't bother to compare the lenses any more. But consequently, I don't see myself being able to sell the Sigma, even though I presently use the DA considerably more.
Forum: Troubleshooting and Beginner Help 04-24-2016, 07:52 PM  
Pentax FF lens
Posted By One3rdEV
Replies: 8
Views: 1,255
I think your plan sounds fine. For sequence, first get the lens that you believe you use for the type of images you do most. If think it could be the 77mm Ltd (e.g. for portraits) don't worry about the fact that it is a single focal length. It really is one of Pentax's most special lens. If you think a general coverage zoom would be most useful the go for the DFA 28-105mm first. Initial impressions seem very good for an FF kit zoom. It likely decent at portraits also, although I haven't seen samples to prove that yet.

Take note about what Steve cautioned regarding the Canon FF applications.
Forum: Pentax DSLR Discussion 04-23-2016, 08:16 PM  
Are we really THAT rare?
Posted By One3rdEV
Replies: 6,327
Views: 825,127
Regarding forum T-shirts with pockets… that's a really really good idea!

What photographer doesn't find themselves dependent on a shirt having a pocket? Oh wait, that was back in my medium format film days… as a place to put the dark slide. Now that we are in the digital era its probably not so needed… oh crap, now where did I put that lens cap?!

Not to mention... how many times have I set my remote down, and then managed to walk off ignorantly.
Search took 0.01 seconds | Showing results 1 to 25 of 183

Forum Jump

All times are GMT -7. The time now is 09:31 AM. | See also:, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]