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Post by belgiumreporter on Dec 3, 2016 19:43:42 GMT -5
According to some sources on the net the pentacon 1.8 50 is an incredible lens for use on digital. As i happen to have one i thought to give it a go on the D3 and while i was at it i tryed the nikkor 45/2.8 GN as well. I wanted to know how that tessar design with a nine bladed apperture would behave. I had some trouble focussing the pentacon, but i guess the examples shown here will give a general idea. The pentacon's bokeh gave nice light blobs when used wide open, stopped down a bit the light spots became hexagonal due to the six bladed apperture. Maybe a question of taste but i'm not that fond of that hexagonal look. The nikkor did produce nice rounded light spots but they are smaller because of the smaller apperture ( 2.8 against the 1.8 of the pentacon) more testing will be neccesary at diffrent background distances (probably will have to go outside for that) here's what i've got for now: Pentacon @ 1.8  Pentacon @ 4  Nikkor @ 2.8  |
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Post by conan on Dec 4, 2016 4:44:09 GMT -5
According to some sources on the net the pentacon 1.8 50 is an incredible lens for use on digital. As i happen to have one i thought to give it a go on the D3 and while i was at it i tryed the nikkor 45/2.8 GN as well. I wanted to know how that tessar design with a nine bladed apperture would behave. I had some trouble focussing the pentacon, but i guess the examples shown here will give a general idea. The pentacon's bokeh gave nice light blobs when used wide open, stopped down a bit the light spots became hexagonal due to the six bladed apperture. Maybe a question of taste but i'm not that fond of that hexagonal look. The nikkor did produce nice rounded light spots but they are smaller because of the smaller apperture ( 2.8 against the 1.8 of the pentacon) more testing will be neccesary at diffrent background distances (probably will have to go outside for that) BR I have been following your lens tests particularly on the Nikon glass and doing my own. My tests on the standard primes is slightly different to yours and will post in a few weeks. Its interesting you are now comparing East German with Nikon. You seem to like going North to South – your NZ trip was interesting when you were testing Nikons by rolling them downhill. Come to the land down under and pay the excess baggage for those ‘yellow’ lenses – we have enough UV in Summer to cure them permanently with a 10 minute sunbathe. Ice – what’s that? This is our first week of Summer and we are already having mid thirty days in Sydney. |
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Post by belgiumreporter on Dec 4, 2016 7:42:54 GMT -5
Conan, don't take my lens tests to serious, i'm just messing around and there's little scientific basis for my tests.
it is just i've got so much lenses that mainly come from my collection (apart from those i've bought for daily use) it would be a shame not to use them and have them sitting on the shelve for the rest of their (my?) life.
Down under is definatly on the bucket list especially Coober Peby, but first i head east now. BTW. UV in NZ was burning through my skin the day i arrived there didn't know then i could use it to cure those thorium lenses...
Ice is the solid frozen form of water, in small amounts mostly in cubes it comes in handy to cool coctails and such. In larger amounts, say in a frozen lake or so it can be difficult to stay upright and the intense cold can be very unconfortable.
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Post by belgiumreporter on Dec 4, 2016 9:22:11 GMT -5
To support my theorie that in a similar situation, a larger apperture will give larger light spots in the bokeh,i've put the nikkor 1.1,2 55mm on the D3 to compare it to the other lenses. Once more focussing was allmost inpossible because the focussing screens in modern (AF) cameras are not suited for manual focussing lenses with apertures larger than 2.8 (quod erat demonstrandum). Even though the 55 has a slightly longer focal lenght and thus gives a diffrent perspective, i think i can safely say my theory is correct.  |
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Post by conan on Dec 6, 2016 6:35:00 GMT -5
Conan, don't take my lens tests to serious, i'm just messing around and there's little scientific basis for my tests. it is just i've got so much lenses that mainly come from my collection (apart from those i've bought for daily use) it would be a shame not to use them and have them sitting on the shelve for the rest of their (my?) life. Down under is definatly on the bucket list especially Coober Peby, but first i head east now. BTW. UV in NZ was burning through my skin the day i arrived there didn't know then i could use it to cure those thorium lenses... Ice is the solid frozen form of water, in small amounts mostly in cubes it comes in handy to cool coctails and such. In larger amounts, say in a frozen lake or so it can be difficult to stay upright and the intense cold can be very unconfortable. I think there is a little too much ‘scientific’ analysis of lenses on web sites – the ultimate test is probably subjective – does it do what the user wants in terms of resolution and colour – is it in the right price bracket and how does it handle Cooper Pedy will give you nice days of 40-45C and buckets of UV. Intense cold can be uncomfortable – but try the opposite – parts of Australia in the middle of summer at >40C and humidity in the mid-seventies. At least when its cold you can put more clothes on! when it’s that hot there is a limit to what you can take off without being arrested. |
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Post by camfiend on Dec 7, 2016 16:57:26 GMT -5
I'll take the chance on being arrested... been in low to mid 40s here for over a week.. cant even turn on a fan as the afternoon storms usually take out the power for at least a few hours.. I rarely get dressed in the mornings (but who's going to see me out here, more importantly, who in their right mind would want to)
Bob
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Post by conan on Dec 8, 2016 3:40:15 GMT -5
I'll take the chance on being arrested... been in low to mid 40s here for over a week.. cant even turn on a fan as the afternoon storms usually take out the power for at least a few hours.. I rarely get dressed in the mornings (but who's going to see me out here, more importantly, who in their right mind would want to) Bob Bob, confirming what we in NSW have always believed – “Queensland, beautiful one day - bloody awful the next”. By taking out the power do you mean the storms blow out the candles? |
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Post by camfiend on Dec 9, 2016 18:37:56 GMT -5
Hi Conan
candles... thats those new fangled wax things?
Have seen them but dont own any, I think they use them in NSW for incinerating the cockroaches as they scurry around..
Have to change my attitude and start supporting the Blue's.. will be moving to Tenterfield this year (not far over the border but back into NSW)
Bob
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