Post your medium format photos!

**RICHARD L.** · 02-02-2021, 08:48 AM - **1 Like**

Originally posted by Ed Hurst

a storm rolled in over the sunny coastline

I saw something like this in Central America many years ago : "HURACAN" they said !

Regards

**ivanvernon** · 02-02-2021, 03:09 PM - **4 Likes**

A walk in the snow with 645Z and Pentax 67 75mm f 2.8. This lens is over priced nowadays, but I managed to find an affordable copy with dented filter thread, not yet repaired.

Aaron28 · 02-02-2021, 08:00 PM - **2 Likes**

pentax 6x7...smc takumar 105/2.4.....expired fujichrome 50D e6 cross processed.....epson v600

**mattb123** · 02-02-2021, 10:49 PM - **7 Likes**

More frost.
645D & FA 80-160

**RICHARD L.** · 02-03-2021, 07:59 AM

Originally posted by ivanvernon

Pentax 67 75mm f 2.8. This lens is over priced nowadays, but I managed to find an affordable copy with dented filter thread, not yet repaired.

Hello Ivan,

I guess these P67 lenses are still expensive because they are quite rare. I think this was one of the last lenses ever produced for the Pentax 67 system, along with the 2 zooms. It is an advanced design, using aspherical elements, it is extremely sharp starting at f/5.6 and it was not produced in large quantities. I bought mine new at B&H for 1000 $ at the time and it passes for a "bargain" now (nice used copies fetch prices upwards of 2000 $ on eBay). "Supply and demand" governs their price on the market.

Regards

**ivanvernon** · 02-03-2021, 10:12 AM

Originally posted by RICHARD L.

Hello Ivan,

I guess these P67 lenses are still expensive because they are quite rare. I think this was one of the last lenses ever produced for the Pentax 67 system, along with the 2 zooms. It is an advanced design, using aspherical elements, it is extremely sharp starting at f/5.6 and it was not produced in large quantities. I bought mine new at B&H for 1000 $ at the time and it passes for a "bargain" now (nice used copies fetch prices upwards of 2000 $ on eBay). "Supply and demand" governs their price on the market.

Regards

Yep, I think you nailed it.

**Ed Hurst** · 02-03-2021, 05:09 PM

Originally posted by texandrews

Whoa! Talk about being in the right place at the right time---and also with mastery of skills and vision. The second 2 are my faves because of the visual rhyming, sky to ground.

Originally posted by ivanvernon

Fantastic sky captures.

Originally posted by RICHARD L.

I saw something like this in Central America many years ago : "HURACAN" they said !

Regards

Thanks so much, everyone! It was an amazing sight to see. As I was on the beach with the kids on a family holiday, it was a matter of calling to my partner, running back to our cabin to get the camera and hoping I didn't miss it. Sheer opportunism...!

Aaron28 · 02-04-2021, 08:18 PM - **2 Likes**

shanghai gp3 100......6x7....epson v600

smc takumar 105/f2.4.....not sure why there are blobs of black reckon it's under expose bokeh?

smc takumar 16/f2.8

**Ed Hurst** · 02-05-2021, 02:56 AM - **8 Likes**

Near Port Macquarie NSW

645Z with 120mm A
[IMG]

[/IMG]

---------- Post added 02-05-21 at 09:27 PM ----------

A couple of hours earlier, from the same spot

645Z with 150mm FA

[IMG]

[/IMG]

w2ck · 02-05-2021, 06:11 AM - **1 Like**

Hi,

Both are great, Ed. And, so very different. And, the same spot. Wicked!

And, y'all really have to stop showing me wonderful shots taken with lenses I don't have yet. My wife is very, very scared by that word: yet!

Stan

Aaron28 · 02-05-2021, 06:56 PM - **2 Likes**

shanghai gp3 100......pentax 6x7.....smc takumar 105/f2.4.......poor expsoure n focusing.....

**RICHARD L.** · 02-06-2021, 08:51 AM - **3 Likes**

mikeSF · 02-06-2021, 09:18 AM - **8 Likes**

Here's a pano of the previously posted bridge image:

Twilight Sparkle Pano
645Z, 600mm, 1.4xTC

**kaseki** · 02-06-2021, 04:24 PM - **2 Likes**

Originally posted by mikeSF

Here's a pano of the previously posted bridge image:
Twilight Sparkle Pano
645Z, 600mm, 1.4xTC

That is really nice. Thanks. If that Oria guy stopped skywriting it would be perfect.

**TDvN57** · 02-08-2021, 06:33 AM - **1 Like**

Was playing with the P645 600mm lens today and revisited the combo with the 1.4 teleconverter. I haven't used this lens for a while and when I opened the box I realized that I had since bought a clear filter for it. I recall reading somewhere that the lens is designed to have at least a clear filter in place. No idea if this has any real impact on the lens' ability to resolve better detail or not, but for good luck and prosperity the filter went in.

I found that the 1.4TC performed fairly well with the 600mm lens but not when the target is too far away. No idea why this is a factor. See the pictures below:

About a 140% crop of a mountain top with some rocks and foliage to see the ability of the lens and camera to resolve the details. The target is about 3km away. Some atmospheric disturbance, but I selected the best of a series of shots to avoid the worst effects.

The same mountain but with the 1.4TC and +/- 140% crop. Comparing the two pictures it looks as if the edges are reasonable but it starts to fail with resolving the foliage.

However at a nearby distance of about 25m the 1.4TC works fairly well with the 600mm lens. I think it does a fairly good job on the feathers, which are normally very difficult.

About 90% crop of the bird (I think it is a Bull Bull)

Comments and pixel peeping appreciated....

02-05-2021, 02:56 AM - 8 Likes	#15909
Ed Hurst Site Supporter Join Date: May 2010 Location: Sydney Posts: 1,656	Looking west from North Brother lookout Near Port Macquarie NSW 645Z with 120mm A [IMG][/IMG] ---------- Post added 02-05-21 at 09:27 PM ---------- A couple of hours earlier, from the same spot 645Z with 150mm FA [IMG][/IMG]

02-06-2021, 08:51 AM - 3 Likes	#15912
RICHARD L. Loyal Site Supporter Join Date: Oct 2018 Location: Quebec City, Quebec Posts: 6,565	Parochial Cemetery, Quebec. 645Z + P67 90-180 mm f/5.6 @ 180 mm FL and f/8.

02-08-2021, 06:33 AM - 1 Like	#15915
TDvN57 Loyal Site Supporter Join Date: Jul 2011 Location: Berlin Photos: Gallery Posts: 1,148	Was playing with the P645 600mm lens today and revisited the combo with the 1.4 teleconverter. I haven't used this lens for a while and when I opened the box I realized that I had since bought a clear filter for it. I recall reading somewhere that the lens is designed to have at least a clear filter in place. No idea if this has any real impact on the lens' ability to resolve better detail or not, but for good luck and prosperity the filter went in. I found that the 1.4TC performed fairly well with the 600mm lens but not when the target is too far away. No idea why this is a factor. See the pictures below: About a 140% crop of a mountain top with some rocks and foliage to see the ability of the lens and camera to resolve the details. The target is about 3km away. Some atmospheric disturbance, but I selected the best of a series of shots to avoid the worst effects. The same mountain but with the 1.4TC and +/- 140% crop. Comparing the two pictures it looks as if the edges are reasonable but it starts to fail with resolving the foliage. However at a nearby distance of about 25m the 1.4TC works fairly well with the 600mm lens. I think it does a fairly good job on the feathers, which are normally very difficult. About 90% crop of the bird (I think it is a Bull Bull) Comments and pixel peeping appreciated.... Last edited by TDvN57; 02-08-2021 at 07:39 AM.

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02-02-2021, 08:48 AM - 1 Like	#15901
RICHARD L. Loyal Site Supporter Join Date: Oct 2018 Location: Quebec City, Quebec Posts: 6,565	Originally posted by Ed Hurst a storm rolled in over the sunny coastline I saw something like this in Central America many years ago : "HURACAN" they said ! Regards

02-02-2021, 08:00 PM - 2 Likes	#15903
Aaron28 Pentaxian Join Date: Jan 2015 Location: Huntsville, Al Posts: 7,131	pentax 6x7...smc takumar 105/2.4.....expired fujichrome 50D e6 cross processed.....epson v600

02-02-2021, 10:49 PM - 7 Likes	#15904
mattb123 Site Supporter Join Date: Apr 2010 Location: Colorado High Country Photos: Gallery Posts: 10,872	More frost. 645D & FA 80-160

02-03-2021, 07:59 AM	#15905
RICHARD L. Loyal Site Supporter Join Date: Oct 2018 Location: Quebec City, Quebec Posts: 6,565	Originally posted by ivanvernon Pentax 67 75mm f 2.8. This lens is over priced nowadays, but I managed to find an affordable copy with dented filter thread, not yet repaired. Hello Ivan, I guess these P67 lenses are still expensive because they are quite rare. I think this was one of the last lenses ever produced for the Pentax 67 system, along with the 2 zooms. It is an advanced design, using aspherical elements, it is extremely sharp starting at f/5.6 and it was not produced in large quantities. I bought mine new at B&H for 1000 $ at the time and it passes for a "bargain" now (nice used copies fetch prices upwards of 2000 $ on eBay). "Supply and demand" governs their price on the market. Regards

02-03-2021, 10:12 AM	#15906
ivanvernon Loyal Site Supporter Join Date: Oct 2012 Location: Medina, OH Photos: Albums Posts: 7,224	Originally posted by RICHARD L. Hello Ivan, I guess these P67 lenses are still expensive because they are quite rare. I think this was one of the last lenses ever produced for the Pentax 67 system, along with the 2 zooms. It is an advanced design, using aspherical elements, it is extremely sharp starting at f/5.6 and it was not produced in large quantities. I bought mine new at B&H for 1000 $ at the time and it passes for a "bargain" now (nice used copies fetch prices upwards of 2000 $ on eBay). "Supply and demand" governs their price on the market. Regards Yep, I think you nailed it.

02-03-2021, 05:09 PM	#15907
Ed Hurst Site Supporter Join Date: May 2010 Location: Sydney Posts: 1,656	Originally posted by texandrews Whoa! Talk about being in the right place at the right time---and also with mastery of skills and vision. The second 2 are my faves because of the visual rhyming, sky to ground. Originally posted by ivanvernon Fantastic sky captures. Originally posted by RICHARD L. I saw something like this in Central America many years ago : "HURACAN" they said ! Regards Thanks so much, everyone! It was an amazing sight to see. As I was on the beach with the kids on a family holiday, it was a matter of calling to my partner, running back to our cabin to get the camera and hoping I didn't miss it. Sheer opportunism...!

02-04-2021, 08:18 PM - 2 Likes	#15908
Aaron28 Pentaxian Join Date: Jan 2015 Location: Huntsville, Al Posts: 7,131	shanghai gp3 100......6x7....epson v600 smc takumar 105/f2.4.....not sure why there are blobs of black reckon it's under expose bokeh? smc takumar 16/f2.8

02-05-2021, 06:11 AM - 1 Like	#15910
w2ck Pentaxian Join Date: Apr 2020 Location: Raleigh, NC Photos: Albums Posts: 442	Hi, Both are great, Ed. And, so very different. And, the same spot. Wicked! And, y'all really have to stop showing me wonderful shots taken with lenses I don't have yet. My wife is very, very scared by that word: yet! Stan

02-05-2021, 06:56 PM - 2 Likes	#15911
Aaron28 Pentaxian Join Date: Jan 2015 Location: Huntsville, Al Posts: 7,131	shanghai gp3 100......pentax 6x7.....smc takumar 105/f2.4.......poor expsoure n focusing.....

02-06-2021, 09:18 AM - 8 Likes	#15913
mikeSF Pentaxian Join Date: Jan 2009 Location: East Bay Area, CA Photos: Gallery Posts: 6,620	Here's a pano of the previously posted bridge image: Twilight Sparkle Pano 645Z, 600mm, 1.4xTC

02-06-2021, 04:24 PM - 2 Likes	#15914
kaseki Loyal Site Supporter Join Date: Dec 2017 Photos: Gallery \| Albums Posts: 1,138	Originally posted by mikeSF Here's a pano of the previously posted bridge image: Twilight Sparkle Pano 645Z, 600mm, 1.4xTC That is really nice. Thanks. If that Oria guy stopped skywriting it would be perfect.

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