network profile
| bio | website | juhele.webnode.cz |
|---|---|---|
| location | Czech Republic | |
| age | 30 | |
| visits | member for | 1 year, 11 months |
| seen | Feb 1 at 12:40 | |
| stats | profile views | 38 |
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Jun 18 |
answered | Can lens accessories be used interchangeably? |
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Jun 18 |
comment |
What type of cloth is safe to clean lenses? Hi, I often use a microfiber cloth which I got with my glasses - if it is OK for my plastic lenses with antireflex coating it must be OK also for the camera lens. Laptop/LCD screens have also some coating and are made from sensitive plastic, so cleaning cloth+cleaning liquid for laptop/LCDs should be also OK. |
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Jun 18 |
answered | What are ways of improving aerial photos? |
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Jun 18 |
comment |
What are ways of improving aerial photos? in case of standard big planes like Boeing 737 the windows has some special foil or coating on it as it produces some crazy rainbow colored moire on the images. I had this experience with Hoya HD Pro1-D CPL and I think it does the same with Hoya HD. So in my case removing polarizer also removes these artefacts. |
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Jun 12 |
awarded | Yearling |
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Jun 8 |
awarded | Constituent |
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Jun 8 |
awarded | Caucus |
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Apr 29 |
comment |
What's a relatively low priced camera that performs well in low light condition? In my opinion the Coolpix P300 would be better in low light because of the f1.8 lens. 24x zoom is too much and decreases the optical quality and increases the minimal F number. The CMOS chip used in P300 should be also very good compared to the same sized CCD chips in other cameras. |
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Apr 27 |
comment |
Why I can't find an A-mount to Canon EF Adapter? did you checked ebay? There are some: ebay.com/sch/… |
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Apr 27 |
comment |
Why I can't find an A-mount to Canon EF Adapter? As I know, they are able to solve this by adding an optical glass element in the adapter. |
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Apr 27 |
comment |
Should I put UV filter to protect the lens even if I put a lens hood? there are also filters like Marumi DHG Lens Protect: marumi-international.com/dhg/page2.html#a02 - also very good. I have it on my telephoto lens. |
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Apr 26 |
comment |
Beginner lenses for Canon T2i @Harsh: So just do a practice and you will see... I used mine 18-55 + 70-300 for a long time before need to buy another lens. Later I bought Samyang 8 mm fisheye - but it is very specific lens and only small group of photographers uses it. |
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Apr 26 |
comment |
Why shave a cropped-frame fisheye lens instead of buying a full-frame one? I do not shoot FF, but for example the Samyang 8mm fisheye is APS-C/DX only. But because of the price and quality, the FF users often decide to buy it and shave the hood. |
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Apr 26 |
comment |
Beginner lenses for Canon T2i I think that you should just begin with the kit lens 18-55 which is almost universal. Later you can decide to buy another but this depends on your budget and needs. I added cheap Tamron 70-300 DI LD Macro as second lens as it telezoom lens and also offers so called "macro" mode which I sometimes use - for the price it is good lens although it has other disadvantages... |
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Apr 26 |
comment |
Does my SLR have an indicator to help me use manual focus quickly and accurately? Pentax has the so called "trap focus" feature for manual lenses - you do the coarse focus first and keep the trigger pushed and move the camera to and from the object and the camera takes photo when it indicates the focus is OK. Works well on my K-x - event with old manual Pentacon lens. |
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Apr 25 |
comment |
What caused incorrect geotagging of my aerial photos? It has a GPS chip. I am using GPS Status sw: play.google.com/store/apps/… so I do not know how reliable is the information. And about the 3G - I have prepaid card so I surely would notice use of mobile data as I would get a billing sms message after every data connection. My colleague promised to take his Holux GPS logger so I will try to geotag the photos using the gpx from it and will see... |
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Apr 25 |
comment |
What caused incorrect geotagging of my aerial photos? Jakub: a-gps was not used as I had no wifi connection on board and I have mobile data (GPRS/3G) disabled by default. About the "true GPS" devices - we use one measuring device which uses Pharos Traveler 535v PDA as display and to get GPS data and it works very well on board without external antenna - but it has GPS Sirf Star III chip inside. About the accuracy of the phone GPS - I checked it and it is about 5 m outdoors, while in my office it was 9-40 m with 9 satellites. |
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Apr 24 |
asked | What caused incorrect geotagging of my aerial photos? |
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Mar 26 |
comment |
How to keep a photograph from getting smaller when rotating it 90 degrees? If you use standard rotation tools, then the picture should keep the original resolution and thus the same size. I am using GIMP and never have such problem. You should check the resolution and maybe DPI or picture size before and after rotating and compare it. |
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Mar 11 |
comment |
Looking for a good, cheap entry-level telephoto lens for Nikon D5100 just a small note - do not know about the Nikons, but the Tamron has rotating front element. However it is cheap, light and I found it useful for my needs. I do not think the image quality is bad, according to reviews (lenstip I think) is was much sharper then equivalent Sigma lens at the longest focal length. It was also cheaper than the Sigma. |
