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by Bart Arondson

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3,342 reputation
32147
bio website facebook.com/…
location Thunder Bay, Canada
age 41
visits member for 3 years, 6 months
seen 6 hours ago

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JAKUB SISAK photography

To see my photography please visit:

facebook | fine art america | 500px | Flickr


Jakub Sisak, I.S.P., GISP


Nov
11
comment Aerial Camera Ground Footprint Calculation
I can't decide whether this is a photography or GIS question. In any case you may have some luck asking this in GIS SE which is very active. I personally do not have a UAV but i know ArcGIS by ESRI has some extensions that allow to stream data to their desktop GIS and it does include a field of view rectangle projected on the ground.
Oct
27
comment Why Isn't This Photograph Pin Sharp?
@I don't have this particular lens, my wide angle landscape lens does not have IS. From what I hear, it is a good practice to turn off IS when using a tripod although modern lenses should be able to detect that the lens is not in motion. Personally, I only use IS with my other lenses when shooting hand-held. Try another shot without IS and manually focus at full magnification to ensure maximum sharpness. Those tree trunks should be razor sharp at f7.
Oct
27
comment Why Isn't This Photograph Pin Sharp?
where is the focus point in that photo? Looks like you focused on the ferns about 1/4 up from the bottom edge. The photo is not NOT sharp enough but is it possible you didn't focus correctly? For this type of landscape on a tripod (which you did) , AF and stabilization should be off, you should magnify 10x and micro-adjust focus manually and exactly where you need it to be. Also, lots of grass and leafs here, nothing solid in the foreground to focus on other than grass - these will move even if it doesn't feel windy but the tree trunks are not sharp enough.
Oct
23
comment GoPro 4 Night Timelapse
Lowest aperture possible and ISO 2500 or more? Even then I doubt you will be able to do this with a GoPro. Even using a DSLR you need a fast (usually expensive) lens. Most astrophotography is also heavily post processed to bring out the stars. The time laps of moving stars that bounce around youtube and facebook are most likely taken with top quality Pro gear. GoPro just can't compete with that amount of glass and light gathering.
Sep
23
comment Which camera to buy - Canon EOS 6D or Canon EOS 7D Mark II
Completely agree! I have the 6D as well as a 60D APS-C and the 6D blows my older camera completely out of the water. The 6D is so great in low light and noise control there is no reason for me to ever use the older 60D other than backup. I was out last night and I put the Canon 50m f1.4 on the 6D to take a few portrait-orientation shots of the milky way (rather than the usual 17-40mm f4 I typically use for this) and I actually had to stop down to f2.8 and ISO 800 because i was getting in too much light at f1.4 f1.6 @ 25 second exposures and ISO higher than 800.
Sep
4
comment Hour long exposure of the sun
Why don't you try image stacking with shorter exposures, a process used to photograph star trails. A regular ND filter and a short exposure time may be enough then post process in software such as ImageStacker. I never tried it so I can't really provide this as a valid alternative answer.
Jul
31
comment Is there a 'top notch' photo lab with flexible options in Canada?
@AJHenderson - I print on the 8300 for my own use and it's good but not good enough for sale IMHO. I only want to offer the best possible print quality and the Hahnemühle paper prints I've been getting from my current service are just absolutely jaw-dropping awesome. I've been printing on plotters for a few years and when exposed to direct sun (my own testing on 2 HP and the Canon 8300) some prints fair better than others with the Canon IPF 8300 on a photo paper being the best but still showing significant deterioration after 2 years on the wall.
Jul
31
comment Is there a 'top notch' photo lab with flexible options in Canada?
Sounds good and lots of options but holy expensive: 77.00 for a 16x20 print on a HAHNEMUHLE FINE ART paper. Posterjack offers 16x24 on the same paper for 24.99. I think I will just keep ordering from posterjack and alter the size of my custom mats instead.
Jun
26
comment Should I buy filters or step down adapters for multiple lenses?
Agreed. I have a few of those but the problem i continually run into it that the rings and the filters are from different manufacturers and the threads can bite to the paint that i am unable to separate it. When it's either too hot or too cold, the ring and the filter seize and I have to take it apart when home in a room temperature. I managed to damage the coating on a filter too trying to unscrew the ring.
Jun
21
comment Can I set up Canon 6D Auto Exposure Bracketing (AEB) to take more than 3 shots?
Perfect! Thank.
Jun
13
comment Websites with RAW conversion contests?
I would love to see one of these and the results. Sounds fun!
Jun
13
comment Why does this satellite image of an airplane in motion show red, green, and blue bands with strange artifacts?
Agreed - this is likely an aerial photo. Until recently, yesterday actually, satellites were not allowed capture imagery better than 50cm resolution. This image is more like 20 - 30, possibly better.
Jun
13
comment Why does this satellite image of an airplane in motion show red, green, and blue bands with strange artifacts?
This question should be moved to GIS Stack Exchange as it is related to remote sensing.
May
30
comment Canon 6D lensflare
Both lenses are "budget". Pro and newer lenses are better at controlling flare but there will always be lens flare under certain situations. Any protective glass or filter will make this worse. I suggest you try a new pro lens of a similar focal length and compare results.
May
30
comment Strange color difference between Rebel XS & 70D
Good answer as always! Both cameras have a different sensor (slightly different size) and different image processor DIGIC III as oppose to DIGIC 5+. I personally notice a difference between my 2 bodies, 60D which uses DIGIC 4 and 6D with DIGIC 5. White balance aside I also find the 60D images somehow "dull" compared to the 6D - always preffererin the newer to the older.
May
17
comment What personal safety precautions do I need to take while traveling with a camera in Scandinavia?
OMG, you didn't...
Apr
21
comment Night photo with Leica 25mm: blur at f/1.4
In low light, you should have your camera on a tripod. I am not familiar with this particular lens but to focus in pitch dark you normally focus to the infinity mark (to shoot stars for example) which should be on or near the focus ring or you bring a flashlight and and focus onto an illuminated area then turn the light off and take the shot. In the dark a solid tripod is a must. There are different techniques for different situations but night photography is challenging but fun and results can be rewarding.
Feb
14
comment Which special effects filter produces circular highlights?
Thanks. The example is only remotely similar to what I am looking for. Please see the example I posted with the question.
Feb
14
comment Which special effects filter produces circular highlights?
I see! great idea the UV filter! so a circular sticker or a donut sticker or something like that. Thanks! Will experiment!
Feb
14
comment Which special effects filter produces circular highlights?
Thanks @Matt. Can you provide a link, example or more info. Do you mean something along the lines of this?.