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Forum: Digital Processing, Software, and Printing 03-10-2019, 02:22 PM  
Options for HDR photo editing
Posted By krazny
Replies: 11
Views: 710
I've started using Affinity Photo recently to merge exposure bracketed shots into one image and I must say I was pleasingly surprised with the outcome.

Granted this is only applicable to multiple exposures but for most parts you can get a very detailed image without the typical HDR-look.

I've also played with Aurora HDR and must say that for most part I do prefer the results from Affinity Photo.

Aurora however is able to create HDR from a single shot, something Affinity does not do.

Aurora also has many more levers, than Affinity, to move around if you really want to work on squeezing something out of your images.

Affinity does have some limitations I have regognized e.g. if you are merging images where you have painted by light and one frame maybe contains no information/light in part of the frame. In that case Affinity gives rather poor results for the merge, even though only one frame of many may be partially blacked out.
Forum: Photographic Technique 02-04-2019, 03:59 PM  
Astrotrackers or barndoor trackers near the arctic circle.
Posted By krazny
Replies: 10
Views: 855
This makes sense. :)




I guess this follows the same principles as a barn door tracker? I've never heard of this before.
Forum: Photographic Technique 02-04-2019, 09:47 AM  
Astrotrackers or barndoor trackers near the arctic circle.
Posted By krazny
Replies: 10
Views: 855
I was wondering about that.

I was watching some tutorial about the Star Adventurer which has a latitude base and it seemed to me that the latitude base only angled to 60 but I could be mistaken about this and there is no mention about this on the skywatcher.com.


I do not know this to be true for sure, haven't been able to confirm or deny this. Maybe they just figured that not that many people would be using one north of 60 (if true).
Forum: Photographic Technique 02-04-2019, 08:39 AM  
Astrotrackers or barndoor trackers near the arctic circle.
Posted By krazny
Replies: 10
Views: 855
I haven't fitted any optics just been doing this by eye when I've tried.

I haven't actually taken any photos using the barndoor tracker because in the original setup the tracker would be pulled open when aimed at the polaris-ish.<

So I have no idea whether my aim is good or not.

I had some thoughts about adding some sort of "scope" or aimer. I guess the simplest solution is to attach a pvc pipe or two loops parallel to the hinge.

I've seen some recommend a laser as a pointer. Turns out some (or all?) lasers do not operate below freezing point so they're not much use.
Forum: Photographic Technique 02-02-2019, 03:43 PM  
Astrotrackers or barndoor trackers near the arctic circle.
Posted By krazny
Replies: 10
Views: 855
I've been pointing the hinge towards Polaris. I'm located at 64N so I guess I've been angling it closer to 60-70 rather than 70-80. (Assuming that I managed to aim correctly).

The idea of putting it on the side sounds good. I was thinking about extending the barndoor somehow so I would get more horizontal base for the ballhead (when in position) but wasn't sure whether that would work in practice.

I guess I'll try to make it out of more beam-like pieces rather than the flat pieces I used.

However I'd love to hear from others if they're near the arctic shooting astro or milky way.
Forum: Photographic Technique 02-02-2019, 01:34 PM  
Astrotrackers or barndoor trackers near the arctic circle.
Posted By krazny
Replies: 10
Views: 855
Hello

I was wondering whether anyone here has used either an astrotracker or a barndoor tracker near the artic circle. + 62.5N

After having read a lot about them I decided to make diy barndoor tracker, only to find out that when I point it at the polaris it seems to form an angle of 70-80 to horizontal. (If I am reading the stellarium software correctly, the angle is 78) Which puts the ball head and camera close to horizontal. With all sorts of forces pulling in directions I'd rather avoid.

I wanted to use the barndoor tracker for budget reasons but I am starting to doubt whether this is at all useable.

The other option that exists is an Astrotracker, I suppose an astrotracker would solve this issue but I'd rather not spend 500$ on one to find out that I am wrong.

cheers.
Forum: Photographic Industry and Professionals 01-26-2019, 05:41 PM  
End the Megapixel War! 100 MP: Is it a mistake?
Posted By krazny
Replies: 48
Views: 2,966
This has been mentioned on the forum before:

THe lenses of the future will not be made out of glass. Rather they will be very thin or flat, metalenses

Multifunctional metalens unlocks with light | Harvard John A. Paulson School of Engineering and Applied Sciences

I have no idea about the time frame here, 2030 maybe :)
Forum: Pentax SLR Lens Discussion 01-19-2019, 10:24 AM  
Pentax to Canon aps converter
Posted By krazny
Replies: 10
Views: 809
Yeah I saw that and I realize I wasn't clear enough with my comment.

What I am referring to is that the canon bodies do not allow you to change the aperture values (not the physical aperture), even in M mode. Which I guess makes the exposure metering harder or maybe not.

Basically the EXIF will at least say that all shots were taken at aperture f1.4

I suppose you can get away with it in Live View (which I assume is available on OP's rebel body) , my canon bodies just do not have Live View options so it didn't cross my mind .... and with that said I'll show myself out of here and allow you to continue discuss adapters :D
Forum: Pentax SLR Lens Discussion 01-19-2019, 09:02 AM  
Pentax to Canon aps converter
Posted By krazny
Replies: 10
Views: 809
Has anyone gotten positive results with using an adapter on Canon bodies?

I have a cheap one but pretty much identical to the Fotodiox and well it fits both the pentax lens and the canon body but as for as using it effectively, that is another story.

I have 3 Canon bodies and all of them lock the aperture value to f 1.4, no way to change it.

Now, I do not mean to hijack this thread, I am not asking for technical advise. I just wanted to throw this out there.


The experience of using pentax lenses on canon bodies with adapters might not be what you think it is going to be.
Forum: Pentax Camera and Field Accessories 01-17-2019, 03:34 AM  
Silly Questions about L-Brackets
Posted By krazny
Replies: 5
Views: 771
I'm assuming that this was a lower case L regarding the RRS brackets rather than a type name.

Are you referring to this one?
Plates for Pentax K-1

There is a universal one from 3 legged things.
Amazon.com : 3 Legged Thing QR11-LC Universal L-Bracket (Orange) : Camera & Photo

I suppose it will fit on the K-5 but I do not own it.

I had one of these cheap universal from Ebay. (MPU105 L Bracket Q/R Plate Universal Quick Release Plate For DSLR Cameras 404339570652 | eBay)

It fits the K-5, unfortunately the Arca Swiss fitting is poor so when I attached it to my tripod head it was just stuck on it. Which was fun.
Forum: Pentax Price Watch 01-08-2019, 04:55 AM  
Humble Bundle - Photography eBook Bundle
Posted By krazny
Replies: 3
Views: 540
Slightly sarcastic yes, but the d40 was a great camera. Unfortunately only 6 mp so with today standards you really start to see the limitation in resolution (and probably have since 2010 onwards).

But the main thing I liked about it was how light it was. I always took it with me when I was hiking and I didn't really appreciate how light it was until I handed it to somebody who was carrying a Nikon d300 with 28-300 lens and their first response was "Wow that's light".
Forum: Pentax Price Watch 01-07-2019, 03:34 PM  
Humble Bundle - Photography eBook Bundle
Posted By krazny
Replies: 3
Views: 540
Well finally I can start to master my Nikon d40! That to me is worth 1$
Forum: Pentax DSLR Discussion 01-06-2019, 06:53 AM  
K1 is giving Nikon D850 a heavy beating
Posted By krazny
Replies: 11
Views: 2,352
one interesting thing is that the Nikon d850 scores relatively low in noise by dxomark. Lower than the d610, which maybe is normal but I would not have expected it.


Nikon D850 vs Nikon D610
Forum: Troubleshooting and Beginner Help 01-06-2019, 04:34 AM  
How do you protect yours?
Posted By krazny
Replies: 42
Views: 2,003
Your bag may become damp or humid and fungus may start to thrive in the bag. So better to leave the camera somewhere dry with fresh air.
Forum: Troubleshooting and Beginner Help 01-05-2019, 04:28 PM  
How do you protect yours?
Posted By krazny
Replies: 42
Views: 2,003
Don't store it in the bag when you're not using it. (and yeah, I'd get a bag for carrying :) )

Using a filter to protect the lens is a matter of a huge debate :)

You can buy a blower to remove dust from the sensor, but as long as you are not removing the lens dust will be a minor issue (unless dust otherwise is a huge issue where you live)

I do not know why there would be any benefits in constantly removing the lens from the camera while storing. I keep the lens on while in storage and have never known this to be an issue.
Forum: Pentax K-3 01-05-2019, 03:55 PM  
K-3 with huge noise starting with ISO 800; iPhone/ performing better
Posted By krazny
Replies: 33
Views: 3,762
The first 2 look OK to me with regards to noise. The third one is the worst but not worse than I would necessarily expect from K-3 (or my K-5) at ISO 3200.

The blur plus the noise make it bad. I didn't notice at first how blurry the third one actually is.
Forum: Digital Processing, Software, and Printing 01-05-2019, 10:35 AM  
Anyone tried On1 2019 (or upgraded) and likes to share their experience?
Posted By krazny
Replies: 14
Views: 952
I've been playing with the stacking and hdr for a couple of days. I've got affinity photos for comparison and also Siril (Open software linux software).

So far I am not overly impressed. Focus stacking does seem to produce an image made by pieces of puzzle of the various images you select, so as you start editing the different photos in develop you start to see which part of the image was used for the stacked images, the stacked image starts to display blotches of lighter or darker areas as you move the exposure values.

I am not well versed with focus stacking. I have mostly been using "stacking" to average exposures where you have to "paint" with light.

The HDR mode does not seem to try to align the different frames so it doesn't at first glance seem to be useful for scenarios where you might want to average exposure and different focal lengths.

I'd love some input from the veterans here if you notice that I'm just completely in the wrong with my workflow or expectations.

You can see the blotches/puzzles on the picture attached.
Forum: Pentax SLR Lens Discussion 12-30-2018, 12:44 PM  
SMC DA 12-24mm and filters
Posted By krazny
Replies: 21
Views: 1,030



The quote I made was taken from the amazon site you posted in your original post. If you check the reviews there were 2 ratings, one 5 star and another 1 star. My quote is the 1 star review.
Forum: Pentax SLR Lens Discussion 12-30-2018, 05:54 AM  
SMC DA 12-24mm and filters
Posted By krazny
Replies: 21
Views: 1,030
Not sure if you are the one reviewing it over on amazon or not but here is one of the two reviews currently.

The possibility exists that these filters are just not that good.

Edit: The link above seems to be something automatically made by the forum itself, I didn't post any hyperlinks.

I am however referring to re-views which can be seen on the amazon page referenced by OP.
Forum: Pentax Camera and Field Accessories 12-22-2018, 11:47 AM  
Tripod - Astralphotography
Posted By krazny
Replies: 22
Views: 1,138
I must admit that I am not familiar with this particular lens but it seems that the Soligor 450 comes with a tripod collar. So at least in theory you should be able to balance the lens + camera on the ball head, which would be optimal, otherwise you will always be dealing with creep regardless of how expensive the tripod and head are.

What is your budget?

For my 2 cents I am gonna recommend the Vanguard Alta Pro, the older version. You can buy the 263AB kit ,which is the 263 AT tripod plus the SBH-100 ball head, for about 120-30 $ on Amazon. Vanguard claims that the kit can support 15.4 pounds or 7kg. The older version comes with spikes which can be "hidden" or exposed buy adjusting rubber knobs on the bottom of the legs, the newer Alta Pro 2 series requires you to buy the spikes separately. Additionally the middle column can be rotated to horizontal which is always nice if you want to get low. I'm recommending the 263AB because I own one but also because I am not aware of any other similar "bang for the buck" tripod bundles at this pricepoint.

ALTA PRO 263AB 100, Professional Camera Tripod | Vanguard World US
amazon.com : Vanguard Alta Pro 263AB 100 Aluminum Tripod with SBH-100 Ball Head for Sony, Nikon, Canon DSLR Cameras : Camera & Photo?tag=pentaxforums-20&
Forum: Digital Processing, Software, and Printing 12-19-2018, 06:01 AM  
Anyone tried On1 2019 (or upgraded) and likes to share their experience?
Posted By krazny
Replies: 14
Views: 952
I guess the title says it all :)

I would just like to hear from those who are using it what your opinions are :)


P.S. I know a 30 day trial is available.
Forum: Pentax K-5 11-22-2018, 10:38 AM  
K-5 or D300
Posted By krazny
Replies: 13
Views: 1,114
I've been seeing some used K-5 IIs used on ebay for about the same price as K-5 (around 300$). I guess the K-5 IIs would be closer to D300 focuswise than the K-5 with improved image quality.

Although I wonder whether Pentax system can overall keep up with Nikon in focus speed if you consider both body and lenses.
Forum: Troubleshooting and Beginner Help 10-04-2018, 06:27 AM  
Help me choose a tripod head please
Posted By krazny
Replies: 22
Views: 1,017
Assuming you are in the UK I guess it is always going to be cheapest buying locally with free shipping?

Vanguard TBH-250 Magnesium Ball Head for DSLR Camera: Amazon.co.uk: Electronics
Vanguard Alta BH-100 Ball Head - Anthracite: Amazon.co.uk: Camera & Photo


For 70 pounds you aren't gonna get something super duper I guess but just decent. With this one you get an Arca Swiss-ish plate which is nice to have if you wanna use a L-bracket (although other options may exist).

For 100 pounds you are looking at much more qualified heads.

Manfrotto XPRO Ball Head, Magnesium Body with 200 PL: Amazon.co.uk: Camera & Photo
Vanguard BBH-200 Ball Head for Pro DSLR Camera and: Amazon.co.uk: Camera & Photo
SIRUI K-10X Ball Head with Quick Release Plate: Amazon.co.uk: Camera & Photo
Forum: Digital Processing, Software, and Printing 07-29-2018, 02:54 PM  
Focus stacking on Linux
Posted By krazny
Replies: 14
Views: 2,653
Have you tried Siril?

Mainly used for astrophotography so not really a focus stacking software but I do find that it helps with landscape photos with different focus range.
Forum: General Photography 04-20-2018, 11:03 AM  
Wide lenses with small apertures, why?
Posted By krazny
Replies: 12
Views: 965
I guess I should have been clearer, but yes you are misunderstanding.

I am mainly wondering from the point of design I guess. Why go for f4.5 vs f2.8



Thank you
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