200mm f2?

Medex · 02-24-2018, 06:07 AM - **2 Likes**

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Originally posted by pschlute

Wow, are you sure that lens didn't start life as one of these ?

Yes, I know my DIY lens assembly resembles thermos did you see any thermos that makes pictures? ))))
The lens with camera has 5.4 kg weight!

Last edited by Medex; 08-02-2018 at 04:04 AM.

sjwoodworth · 02-24-2018, 11:00 AM

Originally posted by Medex

Read more at: 200mm f2? - PentaxForums.com

Perhaps a faulty link? Upon clicking it I'm redirected here. (Great pics!)

Medex · 02-24-2018, 01:40 PM

Originally posted by sjwoodworth

Perhaps a faulty link? Upon clicking it I'm redirected here. (Great pics!)

Thank you. The link was not necessary (my mistake), it is removed now.

**Lowell Goudge** · 02-24-2018, 03:08 PM

to get back to the OP's initial question, i think he is missing one very important point about bokeh vs maximum aperture . what needs to be controlled is the background, and specifically background distance. most of the shots shown could be easily replicated by slower lenses with just a little attention to detail the difference between F2.0 and F2.8 in terms of depth of field in a 200mm lens is not that great, AND given the focal length , it really is an outdoor portrait lens any way there is lots of space to control the background distance. it just takes a little work, and an understanding of how your lens works

Wasp · 02-24-2018, 03:11 PM

A Nikon 200mm f/2 AI-S:

Yours for $2500
Nikon Ai-s NIKKOR ED 200mm f/2 AIS Lens w/ Hood?RARE TOP MINT in Case?Japan #288 | eBay

To make it work on your Pentax body, a Leitax adapter:

It will be 67 Euro
Nikon and Zeiss ZF lenses for Pentax cameras

Not sure that the conversion is doable, but the nice people at Leitax might know. The AF Nikons will definitely not work.

hadi · 02-24-2018, 10:16 PM

Here is an example of shots i was talking about. The ones posted above are okay, but it is easy to replicate that look using a 2.8 200mm lens. But this link shows what the f2 is capable of

https://iso.500px.com/backlight-natural-light-portrait-photo-tutorial/

[IMG]dreamy portraits [/IMG]

**clackers** · 02-25-2018, 12:34 AM - **2 Likes**

Originally posted by hadi

Here is an example of shots i was talking about. The ones posted above are okay, but it is easy to replicate that look using a 2.8 200mm lens. But this link shows what the f2 is capable of

https://iso.500px.com/backlight-natural-light-portrait-photo-tutorial/

Shumilova does that stuff with 85mm or 50mm, Hadi, it's really about the background distance and an enormous amount of software postprocessing.

biz-engineer · 02-25-2018, 01:31 AM

Originally posted by hadi

Here is an example of shots i was talking about. The ones posted above are okay, but it is easy to replicate that look using a 2.8 200mm lens. But this link shows what the f2 is capable of 500px Blog » The passionate photographer community. » How To Shoot Dreamy Backlit Portraits With Natural Light [IMG]dreamy portraits [/IMG]

Yes that's a good example. It's the size of the front element that matter more or less. You could shoot portraits with the DFA150450 @ 450 wide open. Long FL pose the problem that less and less background is included in the shot, that is why of the use of bokeh panorama stitching. Ideal 85mm 1.4 or 135 f2 is better than 200 f2 for including the background to render 3D. I've used the Samyang 135 f2, it's very sharp and produces smooth bokeh, if you get closer to the subject and stitch some backgorund in the frame, you can get really amazing shoots, like what can be done with 200 f2, it is a matter of photography technique.

**Kerrowdown** · 02-25-2018, 04:40 AM

Originally posted by hadi

200mm f2?

From memory which I freely admit is not the best... my Nikon lens back in the day (eighties) had a front glass element the size of a small dinner plate.

**Lowell Goudge** · 02-26-2018, 08:35 AM

Originally posted by Kerrowdown

From memory which I freely admit is not the best... my Nikon lens back in the day (eighties) had a front glass element the size of a small dinner plate.

actually it is a tea saucer

. or maybe a beer coaster?

but yes, 200mmF2 means a piece of glass that is 100mm in diameter, so typically either rear drop in filters, or a 112mm front filter / attachment thread

but as i initially pointed out and others have echoed as well, it is really all about background control

stevebrot · 02-26-2018, 01:21 PM

Originally posted by Wasp

Not sure that the conversion is doable, but the nice people at Leitax might know. The AF Nikons will definitely not work.

~~It isn't. Leitax requires an aperture ring.~~ Sorry...did not notice that this is the older version Nikkor that has an aperture ring. So, the answer is "maybe". The good folk at Leitax might know.

Steve

stevebrot · 02-26-2018, 01:46 PM

Originally posted by hadi

Here is an example of shots i was talking about. The ones posted above are okay, but it is easy to replicate that look using a 2.8 200mm lens. But this link shows what the f2 is capable of

500px Blog » The passionate photographer community. » How To Shoot Dreamy Backlit Portraits With Natural Light

As noted above, the effect may be duplicated with as short as 50mm on APS-C with proper lighting, background choice, and post-processing. From the article in regards to the choice of focal length:

Quote:

I prefer working with a longer focal length as it allows my subject a bit of personal space, and creates a gorgeous, softly blurred rendering of the background.

What focal length buys is working distance and at 200mm the distance pretty much demands outdoor portraits. Few amateurs have access to large enough studio space and appropriate lighting to go that long, so outdoors we must go.

If one wants the look without the longer lens, frame wide and crop in post. Yes, this works. The swirly background effect as well as the haze-vignette was likely added in post. If not, a trip to the lens doctor would be in order. An "L" lens should not do that. If one wants the effect "in-camera", a Helios 40-2 85/1.5 might fit the ticket. It is only good for one thing (funky bokeh), but does it well.

Steve

stevebrot · 02-26-2018, 02:02 PM

Originally posted by Lowell Goudge

200mmF2 means a piece of glass that is 100mm in diameter

Entrance pupil size, but the front element is often at least as large.

Steve

**Kerrowdown** · 02-26-2018, 02:12 PM

Originally posted by Lowell Goudge

or maybe a beer coaster?

Must come to you for a beer, as they must be bigger there; than here.

Just found the specs of mine from back in the day, the Nikkor 200mm f/2.0s IF-ED, Weight: approx. 2400g; Dimensions: 138mm dia. x 222mm long (overall); Filters: 122mm front screw-in.

zzeitg · 02-26-2018, 02:32 PM

Originally posted by Kerrowdown

Filters: 122mm front screw-in.

122mm? That's more than in case of my DA560 (112mm). Crazy.

02-26-2018, 08:35 AM	#25
Lowell Goudge Site Supporter Join Date: Jan 2007 Location: Toronto Photos: Gallery \| Albums Posts: 17,886	Originally posted by Kerrowdown From memory which I freely admit is not the best... my Nikon lens back in the day (eighties) had a front glass element the size of a small dinner plate. actually it is a tea saucer. or maybe a beer coaster? but yes, 200mmF2 means a piece of glass that is 100mm in diameter, so typically either rear drop in filters, or a 112mm front filter / attachment thread but as i initially pointed out and others have echoed as well, it is really all about background control

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02-24-2018, 06:07 AM - 2 Likes	#16
Medex Pentaxian Join Date: May 2013 Location: Vilnius Posts: 1,020	Staff note: This post may contain affiliate links, which means Pentax Forums may earn a small commission if a visitor clicks through and makes a purchase. If you would like to support the forum directly, you may also make a donation here. Originally posted by pschlute Wow, are you sure that lens didn't start life as one of these ? Yes, I know my DIY lens assembly resembles thermos did you see any thermos that makes pictures? )))) The lens with camera has 5.4 kg weight! Last edited by Medex; 08-02-2018 at 04:04 AM.

02-24-2018, 11:00 AM	#17
sjwoodworth Senior Member Join Date: Jan 2017 Posts: 107	Originally posted by Medex Read more at: 200mm f2? - PentaxForums.com Perhaps a faulty link? Upon clicking it I'm redirected here. (Great pics!)

02-24-2018, 01:40 PM	#18
Medex Pentaxian Join Date: May 2013 Location: Vilnius Posts: 1,020	Originally posted by sjwoodworth Perhaps a faulty link? Upon clicking it I'm redirected here. (Great pics!) Thank you. The link was not necessary (my mistake), it is removed now.

02-24-2018, 03:08 PM	#19
Lowell Goudge Site Supporter Join Date: Jan 2007 Location: Toronto Photos: Gallery \| Albums Posts: 17,886	to get back to the OP's initial question, i think he is missing one very important point about bokeh vs maximum aperture . what needs to be controlled is the background, and specifically background distance. most of the shots shown could be easily replicated by slower lenses with just a little attention to detail the difference between F2.0 and F2.8 in terms of depth of field in a 200mm lens is not that great, AND given the focal length , it really is an outdoor portrait lens any way there is lots of space to control the background distance. it just takes a little work, and an understanding of how your lens works

02-24-2018, 03:11 PM	#20
Wasp Pentaxian Join Date: Mar 2017 Location: Pretoria Photos: Gallery Posts: 4,660	A Nikon 200mm f/2 AI-S: Yours for $2500 Nikon Ai-s NIKKOR ED 200mm f/2 AIS Lens w/ Hood?RARE TOP MINT in Case?Japan #288 \| eBay To make it work on your Pentax body, a Leitax adapter: It will be 67 Euro Nikon and Zeiss ZF lenses for Pentax cameras Not sure that the conversion is doable, but the nice people at Leitax might know. The AF Nikons will definitely not work.

02-24-2018, 10:16 PM	#21
hadi Veteran Member Join Date: May 2011 Location: Mississauga, Ontario Posts: 563 Original Poster	Here is an example of shots i was talking about. The ones posted above are okay, but it is easy to replicate that look using a 2.8 200mm lens. But this link shows what the f2 is capable of https://iso.500px.com/backlight-natural-light-portrait-photo-tutorial/ [IMG]dreamy portraits [/IMG]

02-25-2018, 12:34 AM - 2 Likes	#22
clackers Otis Memorial Pentaxian Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 16,397	Originally posted by hadi Here is an example of shots i was talking about. The ones posted above are okay, but it is easy to replicate that look using a 2.8 200mm lens. But this link shows what the f2 is capable of https://iso.500px.com/backlight-natural-light-portrait-photo-tutorial/ Shumilova does that stuff with 85mm or 50mm, Hadi, it's really about the background distance and an enormous amount of software postprocessing.

02-25-2018, 01:31 AM	#23
biz-engineer Pentaxian Join Date: Feb 2015 Photos: Gallery Posts: 12,231	Originally posted by hadi Here is an example of shots i was talking about. The ones posted above are okay, but it is easy to replicate that look using a 2.8 200mm lens. But this link shows what the f2 is capable of 500px Blog » The passionate photographer community. » How To Shoot Dreamy Backlit Portraits With Natural Light [IMG]dreamy portraits [/IMG] Yes that's a good example. It's the size of the front element that matter more or less. You could shoot portraits with the DFA150450 @ 450 wide open. Long FL pose the problem that less and less background is included in the shot, that is why of the use of bokeh panorama stitching. Ideal 85mm 1.4 or 135 f2 is better than 200 f2 for including the background to render 3D. I've used the Samyang 135 f2, it's very sharp and produces smooth bokeh, if you get closer to the subject and stitch some backgorund in the frame, you can get really amazing shoots, like what can be done with 200 f2, it is a matter of photography technique.

02-25-2018, 04:40 AM	#24
Kerrowdown PEG Moderator Join Date: Aug 2008 Location: Highlands of Scotland... "Hold Infinity in the palm of your hand" - William Blake Photos: Gallery Posts: 57,816	Originally posted by hadi 200mm f2? From memory which I freely admit is not the best... my Nikon lens back in the day (eighties) had a front glass element the size of a small dinner plate.

02-26-2018, 01:21 PM	#26
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by Wasp Not sure that the conversion is doable, but the nice people at Leitax might know. The AF Nikons will definitely not work. ~~It isn't. Leitax requires an aperture ring.~~ Sorry...did not notice that this is the older version Nikkor that has an aperture ring. So, the answer is "maybe". The good folk at Leitax might know. Steve

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02-26-2018, 01:46 PM	#27
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by hadi Here is an example of shots i was talking about. The ones posted above are okay, but it is easy to replicate that look using a 2.8 200mm lens. But this link shows what the f2 is capable of 500px Blog » The passionate photographer community. » How To Shoot Dreamy Backlit Portraits With Natural Light As noted above, the effect may be duplicated with as short as 50mm on APS-C with proper lighting, background choice, and post-processing. From the article in regards to the choice of focal length: Quote: I prefer working with a longer focal length as it allows my subject a bit of personal space, and creates a gorgeous, softly blurred rendering of the background. What focal length buys is working distance and at 200mm the distance pretty much demands outdoor portraits. Few amateurs have access to large enough studio space and appropriate lighting to go that long, so outdoors we must go. If one wants the look without the longer lens, frame wide and crop in post. Yes, this works. The swirly background effect as well as the haze-vignette was likely added in post. If not, a trip to the lens doctor would be in order. An "L" lens should not do that. If one wants the effect "in-camera", a Helios 40-2 85/1.5 might fit the ticket. It is only good for one thing (funky bokeh), but does it well. Steve

02-26-2018, 02:02 PM	#28
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by Lowell Goudge 200mmF2 means a piece of glass that is 100mm in diameter Entrance pupil size, but the front element is often at least as large. Steve

02-26-2018, 02:12 PM	#29
Kerrowdown PEG Moderator Join Date: Aug 2008 Location: Highlands of Scotland... "Hold Infinity in the palm of your hand" - William Blake Photos: Gallery Posts: 57,816	Originally posted by Lowell Goudge or maybe a beer coaster? Must come to you for a beer, as they must be bigger there; than here. Just found the specs of mine from back in the day, the Nikkor 200mm f/2.0s IF-ED, Weight: approx. 2400g; Dimensions: 138mm dia. x 222mm long (overall); Filters: 122mm front screw-in.

02-26-2018, 02:32 PM	#30
zzeitg Pentaxian Join Date: Sep 2014 Location: South Bohemia Photos: Gallery \| Albums Posts: 4,017	Originally posted by Kerrowdown Filters: 122mm front screw-in. 122mm? That's more than in case of my DA560 (112mm). Crazy.