Adapted lenses tested on the Q : the reference thread

murrelet · 02-02-2015, 01:54 PM

Originally posted by GUB

Yep all answered. Impressive results. Is the yashica always distinctly warmer than the other lens?

I'm not entirely sure. I'll do some more testing, especially since I got the Lytar and the Kern-Paillard to do portraits (I already had the Yashinon from when my wife bought me an 8mm movie camera from an antiquing outing).

The weird thing is that I'm pretty sure I had the Q7 white balance set for "daylight" instead of "AWB" thinking that the white balance would be fixed at a specific K. But when I imported the RAW file in Lightroom, the Yashinon images were set at almost 5000K and the images from the other lenses were set at around 4000K. I'm probably not fully understanding what the camera does when setting white balance.

I have a color target so when I get around to testing, then I should have some answers.

rafa75 · 02-03-2015, 04:48 AM

Here a quick example with Sigma 120-400 HSM OS - Tripod, + remote @3s - Traget is about 80-100meters

First with 02lens @15 : target is the red circle

Now with the 120-400 Wide open

Crop @ 50%

Raf

Transit · 02-03-2015, 03:40 PM

Originally posted by pacerr

There's a better way - I just happened to have a trashed binocular around when the thought struck. See: 45

It's worth exploring any 1" single element.

ok thanks for that pacerr

rafa75 · 02-04-2015, 02:34 PM

Hi

Some samples from a CCTV Fujian 25 F1.4 lens paid 20USD on Ebay with the adapter ;-) Just received it today - here are the first test

Lens is OK for the price; you will find many positive feed-backs on the web. PF is visible wide open but lens sharpness is fine @1.4.

PF disappears and sharpness increases quickly when close a little - let say by F2.0 . I've not noticed any corner darkness , so if you look for "lomo" shot you will need to add this as a filter

All shots taken wide open ( photo full size on my flickr)

1) Dof test

2- Cat 800iso

3) Bokeh Test

**crewl1** · 02-04-2015, 07:17 PM

This weekend I will try to get the latest lenses indexed. Thanks for the contributions.

hnikesch · 02-11-2015, 02:04 PM - **1 Like**

The following images were shot with my Pentax Q7 the 135 seems very sharp at f5.6 and not bad wide open, all images were cropped for framing and the RAW images were processed in LR5

I recently purchased an old (1980’s) vintage 135mm lens to adapt to my Pentax Q7 camera with a crop factor of 4.7 and wide open an aperture of f2.5 can come in handy. So the 135 has the effective focal length of 635mm when mounted to the Q7. The following images were shot hand held.

Larry if you don't get to it I will also try for an update this weekend

Hans

**barondla** · 02-11-2015, 03:21 PM

Impressive hnikesch. You are the king of handholding Q adapted tele lenses. These are striking images.
thanks
barondla

drougge · 02-11-2015, 04:02 PM

Originally posted by hnikesch

I recently purchased an old (1960’s) vintage 135mm lens

While that may well be true, I assume you're talking about the lens in your post title. And that's an 80's lens.

Pioneer · 02-11-2015, 05:29 PM

Great photographs hnikesch. Thanks for sharing.

SteveNunez · 02-11-2015, 06:28 PM

Very impressive.......great job!

**crewl1** · 02-11-2015, 10:12 PM

Originally posted by rafa75

Hi

Some samples from a CCTV Fujian 25 F1.4 lens paid 20USD on Ebay with the adapter ;-) Just received it today - here are the first test

Lens is OK for the price; you will find many positive feed-backs on the web. PF is visible wide open but lens sharpness is fine @1.4.

PF disappears and sharpness increases quickly when close a little - let say by F2.0 . I've not noticed any corner darkness , so if you look for "lomo" shot you will need to add this as a filter

All shots taken wide open ( photo full size on my flickr)

1) Dof test

2- Cat 800iso

3) Bokeh Test

Rafa which camera are you using so I can add to the index?

**crewl1** · 02-11-2015, 11:30 PM

Index updated with latest contributions.

hnikesch · 02-12-2015, 05:52 AM

Originally posted by drougge

While that may well be true, I assume you're talking about the lens in your post title. And that's an 80's lens.

I stand corrected, thanks, just a small brain fart on my part

Hans

Bellachioma · 02-12-2015, 10:50 AM

Original Q with Mamiya Sekor 645 80mm 2.8 @5.6. 450mm eq.

rafa75 · 02-13-2015, 02:26 PM

Originally posted by crewl1

Rafa which camera are you using so I can add to the index?

Pentax q .. The original :-)

02-03-2015, 04:48 AM	#962
rafa75 Junior Member Join Date: Jun 2007 Location: Europe - France - Paris Photos: Gallery Posts: 35	Sigma 120-400 HSM OS Here a quick example with Sigma 120-400 HSM OS - Tripod, + remote @3s - Traget is about 80-100meters First with 02lens @15 : target is the red circle Now with the 120-400 Wide open Crop @ 50% Raf Last edited by rafa75; 02-04-2015 at 02:34 PM.

02-04-2015, 02:34 PM	#964
rafa75 Junior Member Join Date: Jun 2007 Location: Europe - France - Paris Photos: Gallery Posts: 35	CCTV Fujian 25 F/1.4 Hi Some samples from a CCTV Fujian 25 F1.4 lens paid 20USD on Ebay with the adapter ;-) Just received it today - here are the first test Lens is OK for the price; you will find many positive feed-backs on the web. PF is visible wide open but lens sharpness is fine @1.4. PF disappears and sharpness increases quickly when close a little - let say by F2.0 . I've not noticed any corner darkness , so if you look for "lomo" shot you will need to add this as a filter All shots taken wide open ( photo full size on my flickr) 1) Dof test 2- Cat 800iso 3) Bokeh Test

02-11-2015, 02:04 PM - 1 Like	#966
hnikesch Veteran Member Join Date: May 2009 Location: Michigan, USA Photos: Albums Posts: 1,316	Pentax Takumar (Bayonet) 135mm f2.5 The following images were shot with my Pentax Q7 the 135 seems very sharp at f5.6 and not bad wide open, all images were cropped for framing and the RAW images were processed in LR5 I recently purchased an old (1980’s) vintage 135mm lens to adapt to my Pentax Q7 camera with a crop factor of 4.7 and wide open an aperture of f2.5 can come in handy. So the 135 has the effective focal length of 635mm when mounted to the Q7. The following images were shot hand held. Larry if you don't get to it I will also try for an update this weekend Hans Last edited by hnikesch; 02-12-2015 at 05:53 AM. Reason: lens date corrected

02-12-2015, 10:50 AM	#974
Bellachioma New Member Join Date: Feb 2015 Posts: 15	Original Q with Mamiya Sekor 645 80mm 2.8 @5.6. 450mm eq. Last edited by Bellachioma; 02-12-2015 at 10:57 AM.

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02-02-2015, 01:54 PM	#961
murrelet Pentaxian Join Date: Dec 2007 Location: Portland, OR, USA Photos: Gallery \| Albums Posts: 506	Originally posted by GUB Yep all answered. Impressive results. Is the yashica always distinctly warmer than the other lens? I'm not entirely sure. I'll do some more testing, especially since I got the Lytar and the Kern-Paillard to do portraits (I already had the Yashinon from when my wife bought me an 8mm movie camera from an antiquing outing). The weird thing is that I'm pretty sure I had the Q7 white balance set for "daylight" instead of "AWB" thinking that the white balance would be fixed at a specific K. But when I imported the RAW file in Lightroom, the Yashinon images were set at almost 5000K and the images from the other lenses were set at around 4000K. I'm probably not fully understanding what the camera does when setting white balance. I have a color target so when I get around to testing, then I should have some answers.

02-03-2015, 03:40 PM	#963
Transit Pentaxian Join Date: Aug 2007 Location: Whanganui NZ Photos: Gallery \| Albums Posts: 4,624	Originally posted by pacerr There's a better way - I just happened to have a trashed binocular around when the thought struck. See: 45 It's worth exploring any 1" single element. ok thanks for that pacerr

02-04-2015, 07:17 PM	#965
crewl1 Site Supporter Join Date: Jul 2010 Location: Los Angeles, CA Photos: Gallery \| Albums Posts: 9,807 Original Poster	This weekend I will try to get the latest lenses indexed. Thanks for the contributions.

02-11-2015, 03:21 PM	#967
barondla Site Supporter Join Date: Sep 2006 Location: midwest, United States Photos: Gallery \| Albums Posts: 5,715	Impressive hnikesch. You are the king of handholding Q adapted tele lenses. These are striking images. thanks barondla

02-11-2015, 04:02 PM	#968
drougge Veteran Member Join Date: Jan 2010 Location: Malmö Photos: Gallery Posts: 787	Originally posted by hnikesch I recently purchased an old (1960’s) vintage 135mm lens While that may well be true, I assume you're talking about the lens in your post title. And that's an 80's lens.

02-11-2015, 05:29 PM	#969
Pioneer Pentaxian Join Date: Aug 2009 Location: Wandering the Streets Photos: Gallery \| Albums Posts: 1,411	Great photographs hnikesch. Thanks for sharing.

02-11-2015, 06:28 PM	#970
SteveNunez Senior Member Join Date: Feb 2008 Location: Fort Lauderdale, Florida Photos: Gallery Posts: 230	Very impressive.......great job!

02-11-2015, 10:12 PM	#971
crewl1 Site Supporter Join Date: Jul 2010 Location: Los Angeles, CA Photos: Gallery \| Albums Posts: 9,807 Original Poster	Originally posted by rafa75 Hi Some samples from a CCTV Fujian 25 F1.4 lens paid 20USD on Ebay with the adapter ;-) Just received it today - here are the first test Lens is OK for the price; you will find many positive feed-backs on the web. PF is visible wide open but lens sharpness is fine @1.4. PF disappears and sharpness increases quickly when close a little - let say by F2.0 . I've not noticed any corner darkness , so if you look for "lomo" shot you will need to add this as a filter All shots taken wide open ( photo full size on my flickr) 1) Dof test 2- Cat 800iso 3) Bokeh Test Rafa which camera are you using so I can add to the index?

02-11-2015, 11:30 PM	#972
crewl1 Site Supporter Join Date: Jul 2010 Location: Los Angeles, CA Photos: Gallery \| Albums Posts: 9,807 Original Poster	Index updated with latest contributions.

02-12-2015, 05:52 AM	#973
hnikesch Veteran Member Join Date: May 2009 Location: Michigan, USA Photos: Albums Posts: 1,316	Originally posted by drougge While that may well be true, I assume you're talking about the lens in your post title. And that's an 80's lens. I stand corrected, thanks, just a small brain fart on my part Hans

02-13-2015, 02:26 PM	#975
rafa75 Junior Member Join Date: Jun 2007 Location: Europe - France - Paris Photos: Gallery Posts: 35	Originally posted by crewl1 Rafa which camera are you using so I can add to the index? Pentax q .. The original :-)